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Finding the Fourth Proportional to 500.25, 749.87 and 239.87

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Solution

The fourth proportional to 500.25, 749.87 and 239.87 is: 359.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    500.25 : 749.87 = 239.87 : x
  2. Step 2: Convert to fraction form
    500.25/749.87 = 239.87/x
  3. Step 3: Cross multiply
    500.25x = 749.87 × 239.87
  4. Step 4: Simplify right side
    500.25x = 179,871.32
  5. Step 5: Solve for x
    x = 179,871.32/500.25
  6. Step 6: Final answer
    x = 359.56

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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.