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Finding the Fourth Proportional to 218,155.86, 327,233.75 and 68,396.92

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Solution

The fourth proportional to 218,155.86, 327,233.75 and 68,396.92 is: 102,595.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,155.86 : 327,233.75 = 68,396.92 : x
  2. Step 2: Convert to fraction form
    218,155.86/327,233.75 = 68,396.92/x
  3. Step 3: Cross multiply
    218,155.86x = 327,233.75 × 68,396.92
  4. Step 4: Simplify right side
    218,155.86x = 22,381,780,620.05
  5. Step 5: Solve for x
    x = 22,381,780,620.05/218,155.86
  6. Step 6: Final answer
    x = 102,595.37

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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.