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Finding the Fourth Proportional to 214,761.90, 322,039.02 and 79,732.86

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Solution

The fourth proportional to 214,761.90, 322,039.02 and 79,732.86 is: 119,560.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,761.90 : 322,039.02 = 79,732.86 : x
  2. Step 2: Convert to fraction form
    214,761.90/322,039.02 = 79,732.86/x
  3. Step 3: Cross multiply
    214,761.90x = 322,039.02 × 79,732.86
  4. Step 4: Simplify right side
    214,761.90x = 25,677,092,096.20
  5. Step 5: Solve for x
    x = 25,677,092,096.20/214,761.90
  6. Step 6: Final answer
    x = 119,560.74

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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.