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Finding the Fourth Proportional to 480,753.70, 721,248.63 and 165,215.14

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Solution

The fourth proportional to 480,753.70, 721,248.63 and 165,215.14 is: 247,863.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,753.70 : 721,248.63 = 165,215.14 : x
  2. Step 2: Convert to fraction form
    480,753.70/721,248.63 = 165,215.14/x
  3. Step 3: Cross multiply
    480,753.70x = 721,248.63 × 165,215.14
  4. Step 4: Simplify right side
    480,753.70x = 119,161,193,380.26
  5. Step 5: Solve for x
    x = 119,161,193,380.26/480,753.70
  6. Step 6: Final answer
    x = 247,863.29

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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.