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Finding the Fourth Proportional to 178,654.60, 267,879.84 and 73,387

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Solution

The fourth proportional to 178,654.60, 267,879.84 and 73,387 is: 110,038.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,654.60 : 267,879.84 = 73,387 : x
  2. Step 2: Convert to fraction form
    178,654.60/267,879.84 = 73,387/x
  3. Step 3: Cross multiply
    178,654.60x = 267,879.84 × 73,387
  4. Step 4: Simplify right side
    178,654.60x = 19,658,897,818.08
  5. Step 5: Solve for x
    x = 19,658,897,818.08/178,654.60
  6. Step 6: Final answer
    x = 110,038.58

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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.