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Finding the Fourth Proportional to 218,083.80, 327,125.28 and 68,335.56

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Solution

The fourth proportional to 218,083.80, 327,125.28 and 68,335.56 is: 102,503.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,083.80 : 327,125.28 = 68,335.56 : x
  2. Step 2: Convert to fraction form
    218,083.80/327,125.28 = 68,335.56/x
  3. Step 3: Cross multiply
    218,083.80x = 327,125.28 × 68,335.56
  4. Step 4: Simplify right side
    218,083.80x = 22,354,289,198.96
  5. Step 5: Solve for x
    x = 22,354,289,198.96/218,083.80
  6. Step 6: Final answer
    x = 102,503.21

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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.