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Finding the Fourth Proportional to 496.20, 742.92 and 252.21

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Solution

The fourth proportional to 496.20, 742.92 and 252.21 is: 377.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    496.20 : 742.92 = 252.21 : x
  2. Step 2: Convert to fraction form
    496.20/742.92 = 252.21/x
  3. Step 3: Cross multiply
    496.20x = 742.92 × 252.21
  4. Step 4: Simplify right side
    496.20x = 187,371.85
  5. Step 5: Solve for x
    x = 187,371.85/496.20
  6. Step 6: Final answer
    x = 377.61

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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.