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Finding the Fourth Proportional to 498.29, 747.44 and 292.65

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Solution

The fourth proportional to 498.29, 747.44 and 292.65 is: 438.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    498.29 : 747.44 = 292.65 : x
  2. Step 2: Convert to fraction form
    498.29/747.44 = 292.65/x
  3. Step 3: Cross multiply
    498.29x = 747.44 × 292.65
  4. Step 4: Simplify right side
    498.29x = 218,736.79
  5. Step 5: Solve for x
    x = 218,736.79/498.29
  6. Step 6: Final answer
    x = 438.98

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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.