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Finding the Fourth Proportional to 486,498.80, 729,748.20 and 220,253.36

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Solution

The fourth proportional to 486,498.80, 729,748.20 and 220,253.36 is: 330,380.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,498.80 : 729,748.20 = 220,253.36 : x
  2. Step 2: Convert to fraction form
    486,498.80/729,748.20 = 220,253.36/x
  3. Step 3: Cross multiply
    486,498.80x = 729,748.20 × 220,253.36
  4. Step 4: Simplify right side
    486,498.80x = 160,729,493,003.95
  5. Step 5: Solve for x
    x = 160,729,493,003.95/486,498.80
  6. Step 6: Final answer
    x = 330,380.04

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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.