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Finding the Fourth Proportional to 218,156.64, 327,239.04 and 68,393.60

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Solution

The fourth proportional to 218,156.64, 327,239.04 and 68,393.60 is: 102,591.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,156.64 : 327,239.04 = 68,393.60 : x
  2. Step 2: Convert to fraction form
    218,156.64/327,239.04 = 68,393.60/x
  3. Step 3: Cross multiply
    218,156.64x = 327,239.04 × 68,393.60
  4. Step 4: Simplify right side
    218,156.64x = 22,381,056,006.14
  5. Step 5: Solve for x
    x = 22,381,056,006.14/218,156.64
  6. Step 6: Final answer
    x = 102,591.68

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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.