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Finding the Fourth Proportional to 574.82, 862.09 and 163.84

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Solution

The fourth proportional to 574.82, 862.09 and 163.84 is: 245.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.82 : 862.09 = 163.84 : x
  2. Step 2: Convert to fraction form
    574.82/862.09 = 163.84/x
  3. Step 3: Cross multiply
    574.82x = 862.09 × 163.84
  4. Step 4: Simplify right side
    574.82x = 141,244.83
  5. Step 5: Solve for x
    x = 141,244.83/574.82
  6. Step 6: Final answer
    x = 245.72

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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.