Home / 220,166.20-330,249.30-79,906.60

Finding the Fourth Proportional to 220,166.20, 330,249.30 and 79,906.60

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Solution

The fourth proportional to 220,166.20, 330,249.30 and 79,906.60 is: 119,859.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,166.20 : 330,249.30 = 79,906.60 : x
  2. Step 2: Convert to fraction form
    220,166.20/330,249.30 = 79,906.60/x
  3. Step 3: Cross multiply
    220,166.20x = 330,249.30 × 79,906.60
  4. Step 4: Simplify right side
    220,166.20x = 26,389,098,715.38
  5. Step 5: Solve for x
    x = 26,389,098,715.38/220,166.20
  6. Step 6: Final answer
    x = 119,859.90

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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.