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Finding the Fourth Proportional to 574.75, 862.03 and 163.87

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Solution

The fourth proportional to 574.75, 862.03 and 163.87 is: 245.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.75 : 862.03 = 163.87 : x
  2. Step 2: Convert to fraction form
    574.75/862.03 = 163.87/x
  3. Step 3: Cross multiply
    574.75x = 862.03 × 163.87
  4. Step 4: Simplify right side
    574.75x = 141,260.86
  5. Step 5: Solve for x
    x = 141,260.86/574.75
  6. Step 6: Final answer
    x = 245.78

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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.