noun
mean proportional; geometric mean
Mathematical term for the geometric mean, especially in the context of proportions. Used in geometry and algebra.
比例中項は、二つの数の積の平方根に等しい。
The mean proportional is equal to the square root of the product of the two numbers.
相乗平均 is the more common term for 'geometric mean' in general statistics, while 比例中項 is specifically used in the context of proportions.
Compound of 比例 (proportion) and 中項 (middle term), directly translating the mathematical concept.