Finding the Fourth Proportional to 331,201.20, 457,044.84 and 187,952.72
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Solution
The fourth proportional to 331,201.20, 457,044.84 and 187,952.72 is: 259,367.48
Step by Step Solution
- Step 1: Write the proportion equation
331,201.20 : 457,044.84 = 187,952.72 : x - Step 2: Convert to fraction form
331,201.20/457,044.84 = 187,952.72/x - Step 3: Cross multiply
331,201.20x = 457,044.84 × 187,952.72 - Step 4: Simplify right side
331,201.20x = 85,902,820,839.96 - Step 5: Solve for x
x = 85,902,820,839.96/331,201.20 - Step 6: Final answer
x = 259,367.48
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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.