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Finding the Fourth Proportional to 373.77, 516.14 and 353.31

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Solution

The fourth proportional to 373.77, 516.14 and 353.31 is: 487.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.77 : 516.14 = 353.31 : x
  2. Step 2: Convert to fraction form
    373.77/516.14 = 353.31/x
  3. Step 3: Cross multiply
    373.77x = 516.14 × 353.31
  4. Step 4: Simplify right side
    373.77x = 182,355.66
  5. Step 5: Solve for x
    x = 182,355.66/373.77
  6. Step 6: Final answer
    x = 487.88

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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.