Home / 220,830.20-331,250.72-80,588.80

Finding the Fourth Proportional to 220,830.20, 331,250.72 and 80,588.80

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Solution

The fourth proportional to 220,830.20, 331,250.72 and 80,588.80 is: 120,885.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,830.20 : 331,250.72 = 80,588.80 : x
  2. Step 2: Convert to fraction form
    220,830.20/331,250.72 = 80,588.80/x
  3. Step 3: Cross multiply
    220,830.20x = 331,250.72 × 80,588.80
  4. Step 4: Simplify right side
    220,830.20x = 26,695,098,023.94
  5. Step 5: Solve for x
    x = 26,695,098,023.94/220,830.20
  6. Step 6: Final answer
    x = 120,885.18

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1.5x scale

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.