Home / 220,819.60-331,229.40-102,451.60

Finding the Fourth Proportional to 220,819.60, 331,229.40 and 102,451.60

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Solution

The fourth proportional to 220,819.60, 331,229.40 and 102,451.60 is: 153,677.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,819.60 : 331,229.40 = 102,451.60 : x
  2. Step 2: Convert to fraction form
    220,819.60/331,229.40 = 102,451.60/x
  3. Step 3: Cross multiply
    220,819.60x = 331,229.40 × 102,451.60
  4. Step 4: Simplify right side
    220,819.60x = 33,934,981,997.04
  5. Step 5: Solve for x
    x = 33,934,981,997.04/220,819.60
  6. Step 6: Final answer
    x = 153,677.40

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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.