Finding the Fourth Proportional to 201,494.39, 278,248.97 and 129,997.31
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Solution
The fourth proportional to 201,494.39, 278,248.97 and 129,997.31 is: 179,516.75
Step by Step Solution
- Step 1: Write the proportion equation
201,494.39 : 278,248.97 = 129,997.31 : x - Step 2: Convert to fraction form
201,494.39/278,248.97 = 129,997.31/x - Step 3: Cross multiply
201,494.39x = 278,248.97 × 129,997.31 - Step 4: Simplify right side
201,494.39x = 36,171,616,544.02 - Step 5: Solve for x
x = 36,171,616,544.02/201,494.39 - Step 6: Final answer
x = 179,516.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.