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Finding the Fourth Proportional to 220,834.80, 330,863.40 and 181,177.20

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Solution

The fourth proportional to 220,834.80, 330,863.40 and 181,177.20 is: 271,446.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,834.80 : 330,863.40 = 181,177.20 : x
  2. Step 2: Convert to fraction form
    220,834.80/330,863.40 = 181,177.20/x
  3. Step 3: Cross multiply
    220,834.80x = 330,863.40 × 181,177.20
  4. Step 4: Simplify right side
    220,834.80x = 59,944,904,394.48
  5. Step 5: Solve for x
    x = 59,944,904,394.48/220,834.80
  6. Step 6: Final answer
    x = 271,446.82

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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.