find the mean proportional between 5 and 20
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the formula for mean proportion is, b^2=ac.. so , a=5 and c=20
, b^2=100, b=10. therefore , 10 is the mean proportional between 5 and 20
, b^2=100, b=10. therefore , 10 is the mean proportional between 5 and 20
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The geometric mean of two numbers is also called the mean proportion between two numbers. It is so because:
A : Mean = Mean : B or A/Mean = Mean / B
Mean² = AB
Mean = √ (AB) = √5*20 = √100 = 10
A : Mean = Mean : B or A/Mean = Mean / B
Mean² = AB
Mean = √ (AB) = √5*20 = √100 = 10
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