Finding the Fourth Proportional to 437,651.39, 656,477.01 and 138,342.08
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Solution
The fourth proportional to 437,651.39, 656,477.01 and 138,342.08 is: 207,513.09
Step by Step Solution
- Step 1: Write the proportion equation
437,651.39 : 656,477.01 = 138,342.08 : x - Step 2: Convert to fraction form
437,651.39/656,477.01 = 138,342.08/x - Step 3: Cross multiply
437,651.39x = 656,477.01 × 138,342.08 - Step 4: Simplify right side
437,651.39x = 90,818,391,753.20 - Step 5: Solve for x
x = 90,818,391,753.20/437,651.39 - Step 6: Final answer
x = 207,513.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.