Finding the Fourth Proportional to 378,184.98, 521,895.36 and 206,102.99
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Solution
The fourth proportional to 378,184.98, 521,895.36 and 206,102.99 is: 284,422.17
Step by Step Solution
- Step 1: Write the proportion equation
378,184.98 : 521,895.36 = 206,102.99 : x - Step 2: Convert to fraction form
378,184.98/521,895.36 = 206,102.99/x - Step 3: Cross multiply
378,184.98x = 521,895.36 × 206,102.99 - Step 4: Simplify right side
378,184.98x = 107,564,191,553.65 - Step 5: Solve for x
x = 107,564,191,553.65/378,184.98 - Step 6: Final answer
x = 284,422.17
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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.