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Finding the Fourth Proportional to 178,481.11, 267,803.36 and 77,310.08

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Solution

The fourth proportional to 178,481.11, 267,803.36 and 77,310.08 is: 116,000.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,481.11 : 267,803.36 = 77,310.08 : x
  2. Step 2: Convert to fraction form
    178,481.11/267,803.36 = 77,310.08/x
  3. Step 3: Cross multiply
    178,481.11x = 267,803.36 × 77,310.08
  4. Step 4: Simplify right side
    178,481.11x = 20,703,898,799.32
  5. Step 5: Solve for x
    x = 20,703,898,799.32/178,481.11
  6. Step 6: Final answer
    x = 116,000.51

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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.