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Finding the Fourth Proportional to 498.28, 747.46 and 173.65

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Solution

The fourth proportional to 498.28, 747.46 and 173.65 is: 260.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    498.28 : 747.46 = 173.65 : x
  2. Step 2: Convert to fraction form
    498.28/747.46 = 173.65/x
  3. Step 3: Cross multiply
    498.28x = 747.46 × 173.65
  4. Step 4: Simplify right side
    498.28x = 129,796.43
  5. Step 5: Solve for x
    x = 129,796.43/498.28
  6. Step 6: Final answer
    x = 260.49

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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.