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Finding the Fourth Proportional to 381,250.30, 571,879.56 and 115,013.13

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Solution

The fourth proportional to 381,250.30, 571,879.56 and 115,013.13 is: 172,520.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,250.30 : 571,879.56 = 115,013.13 : x
  2. Step 2: Convert to fraction form
    381,250.30/571,879.56 = 115,013.13/x
  3. Step 3: Cross multiply
    381,250.30x = 571,879.56 × 115,013.13
  4. Step 4: Simplify right side
    381,250.30x = 65,773,655,319.23
  5. Step 5: Solve for x
    x = 65,773,655,319.23/381,250.30
  6. Step 6: Final answer
    x = 172,520.93

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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.