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Finding the Fourth Proportional to 218,482.92, 327,789.18 and 68,743.89

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Solution

The fourth proportional to 218,482.92, 327,789.18 and 68,743.89 is: 103,136.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,482.92 : 327,789.18 = 68,743.89 : x
  2. Step 2: Convert to fraction form
    218,482.92/327,789.18 = 68,743.89/x
  3. Step 3: Cross multiply
    218,482.92x = 327,789.18 × 68,743.89
  4. Step 4: Simplify right side
    218,482.92x = 22,533,503,333.11
  5. Step 5: Solve for x
    x = 22,533,503,333.11/218,482.92
  6. Step 6: Final answer
    x = 103,136.22

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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.