Home / 220,833.20-331,255.22-80,591.80

Finding the Fourth Proportional to 220,833.20, 331,255.22 and 80,591.80

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Solution

The fourth proportional to 220,833.20, 331,255.22 and 80,591.80 is: 120,889.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,833.20 : 331,255.22 = 80,591.80 : x
  2. Step 2: Convert to fraction form
    220,833.20/331,255.22 = 80,591.80/x
  3. Step 3: Cross multiply
    220,833.20x = 331,255.22 × 80,591.80
  4. Step 4: Simplify right side
    220,833.20x = 26,696,454,439.20
  5. Step 5: Solve for x
    x = 26,696,454,439.20/220,833.20
  6. Step 6: Final answer
    x = 120,889.68

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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.