Finding the Fourth Proportional to 378,252.62, 521,985.27 and 206,170.57
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Solution
The fourth proportional to 378,252.62, 521,985.27 and 206,170.57 is: 284,513.57
Step by Step Solution
- Step 1: Write the proportion equation
378,252.62 : 521,985.27 = 206,170.57 : x - Step 2: Convert to fraction form
378,252.62/521,985.27 = 206,170.57/x - Step 3: Cross multiply
378,252.62x = 521,985.27 × 206,170.57 - Step 4: Simplify right side
378,252.62x = 107,618,002,073.13 - Step 5: Solve for x
x = 107,618,002,073.13/378,252.62 - Step 6: Final answer
x = 284,513.57
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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.