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Finding the Fourth Proportional to 250.29, 372.92 and 239.81

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Solution

The fourth proportional to 250.29, 372.92 and 239.81 is: 357.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.29 : 372.92 = 239.81 : x
  2. Step 2: Convert to fraction form
    250.29/372.92 = 239.81/x
  3. Step 3: Cross multiply
    250.29x = 372.92 × 239.81
  4. Step 4: Simplify right side
    250.29x = 89,426.88
  5. Step 5: Solve for x
    x = 89,426.88/250.29
  6. Step 6: Final answer
    x = 357.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.