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Finding the Fourth Proportional to 239.56, 360.71 and 167.88

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Solution

The fourth proportional to 239.56, 360.71 and 167.88 is: 252.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.56 : 360.71 = 167.88 : x
  2. Step 2: Convert to fraction form
    239.56/360.71 = 167.88/x
  3. Step 3: Cross multiply
    239.56x = 360.71 × 167.88
  4. Step 4: Simplify right side
    239.56x = 60,555.99
  5. Step 5: Solve for x
    x = 60,555.99/239.56
  6. Step 6: Final answer
    x = 252.78

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.