mean proportional
nounMathematics.
(between two numbers a and b) a number x for which a/x = x/b: The number 3 is a mean proportional between 1 and 9.
Origin of mean proportional
1First recorded in 1565–75
Words Nearby mean proportional
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use mean proportional in a sentence
We then find the mean proportional between the length HD and the height of the parallelogram.
Amusements in Mathematics | Henry Ernest DudeneyThen x - 5 is a mean proportional between x - 9 and x, from which we find that x equals 25.
Amusements in Mathematics | Henry Ernest DudeneyLastly, as there is only one mean proportional between each relation, there is also only one good government possible for a State.
The Social Contract & Discourses | Jean-Jacques RousseauIn the Pyramid Cheops, altitude is very nearly a mean proportional between apothem and half base.
The Solution of the Pyramid Problem | Robert BallardTo find a mean proportional between two given straight lines.
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