Finding the Fourth Proportional to 387,432.52, 534,653.26 and 215,345.99
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Solution
The fourth proportional to 387,432.52, 534,653.26 and 215,345.99 is: 297,175.46
Step by Step Solution
- Step 1: Write the proportion equation
387,432.52 : 534,653.26 = 215,345.99 : x - Step 2: Convert to fraction form
387,432.52/534,653.26 = 215,345.99/x - Step 3: Cross multiply
387,432.52x = 534,653.26 × 215,345.99 - Step 4: Simplify right side
387,432.52x = 115,135,436,379.70 - Step 5: Solve for x
x = 115,135,436,379.70/387,432.52 - Step 6: Final answer
x = 297,175.46
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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.