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Finding the Fourth Proportional to 486,496.80, 729,745.20 and 220,251.36

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Solution

The fourth proportional to 486,496.80, 729,745.20 and 220,251.36 is: 330,377.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,496.80 : 729,745.20 = 220,251.36 : x
  2. Step 2: Convert to fraction form
    486,496.80/729,745.20 = 220,251.36/x
  3. Step 3: Cross multiply
    486,496.80x = 729,745.20 × 220,251.36
  4. Step 4: Simplify right side
    486,496.80x = 160,727,372,753.47
  5. Step 5: Solve for x
    x = 160,727,372,753.47/486,496.80
  6. Step 6: Final answer
    x = 330,377.04

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Similar ratio
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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.