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Finding the Fourth Proportional to 178,234.40, 267,502.80 and 73,128.80

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Solution

The fourth proportional to 178,234.40, 267,502.80 and 73,128.80 is: 109,755.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,234.40 : 267,502.80 = 73,128.80 : x
  2. Step 2: Convert to fraction form
    178,234.40/267,502.80 = 73,128.80/x
  3. Step 3: Cross multiply
    178,234.40x = 267,502.80 × 73,128.80
  4. Step 4: Simplify right side
    178,234.40x = 19,562,158,760.64
  5. Step 5: Solve for x
    x = 19,562,158,760.64/178,234.40
  6. Step 6: Final answer
    x = 109,755.24

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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.