Finding the Fourth Proportional to 397,148.13, 548,068.10 and 215,860.50
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Solution
The fourth proportional to 397,148.13, 548,068.10 and 215,860.50 is: 297,889.49
Step by Step Solution
- Step 1: Write the proportion equation
397,148.13 : 548,068.10 = 215,860.50 : x - Step 2: Convert to fraction form
397,148.13/548,068.10 = 215,860.50/x - Step 3: Cross multiply
397,148.13x = 548,068.10 × 215,860.50 - Step 4: Simplify right side
397,148.13x = 118,306,253,020.75 - Step 5: Solve for x
x = 118,306,253,020.75/397,148.13 - Step 6: Final answer
x = 297,889.49
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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.