Finding the Fourth Proportional to 378,952.14, 522,935.58 and 215,593.28
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Solution
The fourth proportional to 378,952.14, 522,935.58 and 215,593.28 is: 297,508.27
Step by Step Solution
- Step 1: Write the proportion equation
378,952.14 : 522,935.58 = 215,593.28 : x - Step 2: Convert to fraction form
378,952.14/522,935.58 = 215,593.28/x - Step 3: Cross multiply
378,952.14x = 522,935.58 × 215,593.28 - Step 4: Simplify right side
378,952.14x = 112,741,394,306.23 - Step 5: Solve for x
x = 112,741,394,306.23/378,952.14 - Step 6: Final answer
x = 297,508.27
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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.