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Finding the Fourth Proportional to 360.68, 540.56 and 167.88

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Solution

The fourth proportional to 360.68, 540.56 and 167.88 is: 251.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.68 : 540.56 = 167.88 : x
  2. Step 2: Convert to fraction form
    360.68/540.56 = 167.88/x
  3. Step 3: Cross multiply
    360.68x = 540.56 × 167.88
  4. Step 4: Simplify right side
    360.68x = 90,749.21
  5. Step 5: Solve for x
    x = 90,749.21/360.68
  6. Step 6: Final answer
    x = 251.61

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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.