Pro Rata Definition

prō rātə, rä-, rătə
In proportion; proportionate(ly)
Webster's New World
Alternative form of pro rata.
According to the rate; in proportion. If a lawyer charges $100 per hour, and she works a quarter of an hour, her pro rata fee would be $100/4, or $25.
Webster's New World Law

Origin of Pro Rata

  • Latin prō ratā (parte) according to the calculated (share) prō according to ratā feminine ablative of ratus calculated

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Latin pro (“according to") + ratus (“calculated")

    From Wiktionary

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pro rata