Finding the Fourth Proportional to 378,186.98, 521,898.12 and 206,104.99
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Solution
The fourth proportional to 378,186.98, 521,898.12 and 206,104.99 is: 284,424.93
Step by Step Solution
- Step 1: Write the proportion equation
378,186.98 : 521,898.12 = 206,104.99 : x - Step 2: Convert to fraction form
378,186.98/521,898.12 = 206,104.99/x - Step 3: Cross multiply
378,186.98x = 521,898.12 × 206,104.99 - Step 4: Simplify right side
378,186.98x = 107,565,806,803.62 - Step 5: Solve for x
x = 107,565,806,803.62/378,186.98 - Step 6: Final answer
x = 284,424.93
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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.