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Finding the Fourth Proportional to 220,158.20, 330,237.30 and 79,898.60

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Solution

The fourth proportional to 220,158.20, 330,237.30 and 79,898.60 is: 119,847.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,158.20 : 330,237.30 = 79,898.60 : x
  2. Step 2: Convert to fraction form
    220,158.20/330,237.30 = 79,898.60/x
  3. Step 3: Cross multiply
    220,158.20x = 330,237.30 × 79,898.60
  4. Step 4: Simplify right side
    220,158.20x = 26,385,497,937.78
  5. Step 5: Solve for x
    x = 26,385,497,937.78/220,158.20
  6. Step 6: Final answer
    x = 119,847.90

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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.