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Finding the Fourth Proportional to 498.25, 747.35 and 169.18

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Solution

The fourth proportional to 498.25, 747.35 and 169.18 is: 253.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    498.25 : 747.35 = 169.18 : x
  2. Step 2: Convert to fraction form
    498.25/747.35 = 169.18/x
  3. Step 3: Cross multiply
    498.25x = 747.35 × 169.18
  4. Step 4: Simplify right side
    498.25x = 126,435.23
  5. Step 5: Solve for x
    x = 126,435.23/498.25
  6. Step 6: Final answer
    x = 253.76

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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.