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Finding the Fourth Proportional to 381,267.80, 571,255.85 and 253,094.57

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Solution

The fourth proportional to 381,267.80, 571,255.85 and 253,094.57 is: 379,213.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,267.80 : 571,255.85 = 253,094.57 : x
  2. Step 2: Convert to fraction form
    381,267.80/571,255.85 = 253,094.57/x
  3. Step 3: Cross multiply
    381,267.80x = 571,255.85 × 253,094.57
  4. Step 4: Simplify right side
    381,267.80x = 144,581,753,634.40
  5. Step 5: Solve for x
    x = 144,581,753,634.40/381,267.80
  6. Step 6: Final answer
    x = 379,213.13

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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.