The proportion of coffee increases as the size of cup gets larger.

An example of proportion is the number of girls in a class compared to the number of boys.

## proportion

- the comparative relation between parts, things, or elements with respect to size, amount, degree, etc.; ratio
- a part, share, or portion, esp. in its relation to the whole; quota
- relationship between parts or things; esp., harmonious, proper, or desirable relationship; balance or symmetry
- size, degree, or extent relative to a standard
- dimensions: a building of large
*proportions* - Math.
- an equality between ratios; relationship between four quantities in which the quotient of the first divided by the second is equal to that of the third divided by the fourth (Ex.: 6 is to 2 as 9 is to 3)also called geometrical proportion
- rule of three

- an equality between ratios; relationship between four quantities in which the quotient of the first divided by the second is equal to that of the third divided by the fourth (Ex.: 6 is to 2 as 9 is to 3)

Origin of proportion

Middle English*proporcioun*; from Middle French

*proporcion*; from Classical Latin

*proportio*; from

*pro*, for +

*portio*, part: see portion

- to cause to be in proper relation, harmony, or balance: to
*proportion*the punishment to the crime - to arrange the parts of (a whole) so as to be harmonious or properly balanced

## proportion

noun

- A part or amount considered in relation to a whole:
*What is the proportion of helium in the atmosphere?* - A relationship between things or parts of things with respect to comparative magnitude, quantity, or degree:
*the proper proportion between oil and vinegar in the dressing.* - A relationship between quantities such that if one varies then another varies in a manner dependent on the first:
*“We do not always find visible happiness in proportion to visible virtue”**(Samuel Johnson).* - The agreeable or harmonious relation of parts within a whole:
*The statue seems out of proportion.* - often
**proportions**Dimensions; size:*First measure the proportions of the room.* -
*Mathematics*A statement of equality between two ratios. Four quantities,*a, b, c, d,*are said to be in proportion if^{a}/_{b}=^{c}/_{d}.

transitive verb

**pro·por·tioned**,

**pro·por·tion·ing**,

**pro·por·tions**

- To adjust so that proper relations between parts are attained:
*Have you proportioned the oil in the dressing properly?* - To form the parts of with balance or symmetry:
*The artist proportioned the figure nicely.*

Origin of proportion

Middle English*proporcion*, from Old French

*proportion*, from Latin

*pr&omacron;porti&omacron;*

*, pr&omacron;porti&omacron;n-*, from

*pr&omacron; porti&omacron;ne*,

*according to (each) part*:

*pr&omacron;*,

*according to*; see

**pro–**

^{1}+

*porti&omacron;ne*, ablative of

*porti&omacron;*,

*part*; see

*per&schwa;-*

^{2}in Indo-European roots.

*Related Forms:*

**pro·por′tion·a·ble**adjective

**pro·por′tion·a·bly**adverb

**pro·por′tion·er**noun

**pro·por′tion·ment**noun

## proportion

(*countable and uncountable*, *plural* proportions)

- (countable) A quantity of something that is part of the whole amount or number.
- (uncountable) Harmonious relation of parts to each other or to the whole.
- (countable) Proper or equal share.
- The relation of one part to another or to the whole with respect to magnitude, quantity, or degree.
*the proportion of the parts of a building, or of the body*

- (mathematics, countable) A statement of equality between two ratios.
- (countable, chiefly in the plural) Size.

(*third-person singular simple present* proportions, *present participle* proportioning, *simple past and past participle* proportioned)

- (art) To set or render in proportion.

From Middle English *proporcion*, from Old French *proportion*, from Latin *proportio* (“comparative relation, proportion, symmetry, analogy”), from *pro* (“for, before”) + *portio* (“share, part”); see portion.