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Finding the Fourth Proportional to 221,753.80, 332,557.80 and 81,494.20

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Solution

The fourth proportional to 221,753.80, 332,557.80 and 81,494.20 is: 122,214.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,753.80 : 332,557.80 = 81,494.20 : x
  2. Step 2: Convert to fraction form
    221,753.80/332,557.80 = 81,494.20/x
  3. Step 3: Cross multiply
    221,753.80x = 332,557.80 × 81,494.20
  4. Step 4: Simplify right side
    221,753.80x = 27,101,531,864.76
  5. Step 5: Solve for x
    x = 27,101,531,864.76/221,753.80
  6. Step 6: Final answer
    x = 122,214.51

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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.