Home / 457,244.46-686,309.52-220,753.20

Finding the Fourth Proportional to 457,244.46, 686,309.52 and 220,753.20

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Solution

The fourth proportional to 457,244.46, 686,309.52 and 220,753.20 is: 331,343.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,244.46 : 686,309.52 = 220,753.20 : x
  2. Step 2: Convert to fraction form
    457,244.46/686,309.52 = 220,753.20/x
  3. Step 3: Cross multiply
    457,244.46x = 686,309.52 × 220,753.20
  4. Step 4: Simplify right side
    457,244.46x = 151,505,022,730.46
  5. Step 5: Solve for x
    x = 151,505,022,730.46/457,244.46
  6. Step 6: Final answer
    x = 331,343.59

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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.