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Finding the Fourth Proportional to 650.71, 976.17 and 239.92

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Solution

The fourth proportional to 650.71, 976.17 and 239.92 is: 359.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.71 : 976.17 = 239.92 : x
  2. Step 2: Convert to fraction form
    650.71/976.17 = 239.92/x
  3. Step 3: Cross multiply
    650.71x = 976.17 × 239.92
  4. Step 4: Simplify right side
    650.71x = 234,202.71
  5. Step 5: Solve for x
    x = 234,202.71/650.71
  6. Step 6: Final answer
    x = 359.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.