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Finding the Fourth Proportional to 112.29, 168.44 and 35.25

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Solution

The fourth proportional to 112.29, 168.44 and 35.25 is: 52.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    112.29 : 168.44 = 35.25 : x
  2. Step 2: Convert to fraction form
    112.29/168.44 = 35.25/x
  3. Step 3: Cross multiply
    112.29x = 168.44 × 35.25
  4. Step 4: Simplify right side
    112.29x = 5,937.54
  5. Step 5: Solve for x
    x = 5,937.54/112.29
  6. Step 6: Final answer
    x = 52.88

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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.