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Finding the Fourth Proportional to 218,153.86, 327,230.75 and 68,394.92

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Solution

The fourth proportional to 218,153.86, 327,230.75 and 68,394.92 is: 102,592.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,153.86 : 327,230.75 = 68,394.92 : x
  2. Step 2: Convert to fraction form
    218,153.86/327,230.75 = 68,394.92/x
  3. Step 3: Cross multiply
    218,153.86x = 327,230.75 × 68,394.92
  4. Step 4: Simplify right side
    218,153.86x = 22,380,919,502.62
  5. Step 5: Solve for x
    x = 22,380,919,502.62/218,153.86
  6. Step 6: Final answer
    x = 102,592.36

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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.