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Finding the Fourth Proportional to 220,147.20, 330,220.80 and 182,781.90

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Solution

The fourth proportional to 220,147.20, 330,220.80 and 182,781.90 is: 274,172.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,147.20 : 330,220.80 = 182,781.90 : x
  2. Step 2: Convert to fraction form
    220,147.20/330,220.80 = 182,781.90/x
  3. Step 3: Cross multiply
    220,147.20x = 330,220.80 × 182,781.90
  4. Step 4: Simplify right side
    220,147.20x = 60,358,385,243.52
  5. Step 5: Solve for x
    x = 60,358,385,243.52/220,147.20
  6. Step 6: Final answer
    x = 274,172.85

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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.