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Finding the Fourth Proportional to 218,037.52, 327,056.29 and 68,289.53

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Solution

The fourth proportional to 218,037.52, 327,056.29 and 68,289.53 is: 102,434.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,037.52 : 327,056.29 = 68,289.53 : x
  2. Step 2: Convert to fraction form
    218,037.52/327,056.29 = 68,289.53/x
  3. Step 3: Cross multiply
    218,037.52x = 327,056.29 × 68,289.53
  4. Step 4: Simplify right side
    218,037.52x = 22,334,520,327.64
  5. Step 5: Solve for x
    x = 22,334,520,327.64/218,037.52
  6. Step 6: Final answer
    x = 102,434.30

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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.