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Finding the Fourth Proportional to 169.96, 255.18 and 88.88

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Solution

The fourth proportional to 169.96, 255.18 and 88.88 is: 133.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.96 : 255.18 = 88.88 : x
  2. Step 2: Convert to fraction form
    169.96/255.18 = 88.88/x
  3. Step 3: Cross multiply
    169.96x = 255.18 × 88.88
  4. Step 4: Simplify right side
    169.96x = 22,680.40
  5. Step 5: Solve for x
    x = 22,680.40/169.96
  6. Step 6: Final answer
    x = 133.45

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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.