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Finding the Fourth Proportional to 373.88, 516.17 and 249.95

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Solution

The fourth proportional to 373.88, 516.17 and 249.95 is: 345.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.88 : 516.17 = 249.95 : x
  2. Step 2: Convert to fraction form
    373.88/516.17 = 249.95/x
  3. Step 3: Cross multiply
    373.88x = 516.17 × 249.95
  4. Step 4: Simplify right side
    373.88x = 129,018.61
  5. Step 5: Solve for x
    x = 129,018.61/373.88
  6. Step 6: Final answer
    x = 345.08

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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.