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Finding the Fourth Proportional to 218,092.98, 327,139.10 and 68,344.78

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Solution

The fourth proportional to 218,092.98, 327,139.10 and 68,344.78 is: 102,517.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,092.98 : 327,139.10 = 68,344.78 : x
  2. Step 2: Convert to fraction form
    218,092.98/327,139.10 = 68,344.78/x
  3. Step 3: Cross multiply
    218,092.98x = 327,139.10 × 68,344.78
  4. Step 4: Simplify right side
    218,092.98x = 22,358,249,818.90
  5. Step 5: Solve for x
    x = 22,358,249,818.90/218,092.98
  6. Step 6: Final answer
    x = 102,517.05

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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.