Home / 221,432.76-331,945.20-88,281

Finding the Fourth Proportional to 221,432.76, 331,945.20 and 88,281

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Solution

The fourth proportional to 221,432.76, 331,945.20 and 88,281 is: 132,340.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,432.76 : 331,945.20 = 88,281 : x
  2. Step 2: Convert to fraction form
    221,432.76/331,945.20 = 88,281/x
  3. Step 3: Cross multiply
    221,432.76x = 331,945.20 × 88,281
  4. Step 4: Simplify right side
    221,432.76x = 29,304,454,201.20
  5. Step 5: Solve for x
    x = 29,304,454,201.20/221,432.76
  6. Step 6: Final answer
    x = 132,340.19

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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.