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Finding the Fourth Proportional to 381,159.56, 571,659.14 and 245,818.28

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Solution

The fourth proportional to 381,159.56, 571,659.14 and 245,818.28 is: 368,675.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,159.56 : 571,659.14 = 245,818.28 : x
  2. Step 2: Convert to fraction form
    381,159.56/571,659.14 = 245,818.28/x
  3. Step 3: Cross multiply
    381,159.56x = 571,659.14 × 245,818.28
  4. Step 4: Simplify right side
    381,159.56x = 140,524,266,541.08
  5. Step 5: Solve for x
    x = 140,524,266,541.08/381,159.56
  6. Step 6: Final answer
    x = 368,675.70

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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.