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Finding the Fourth Proportional to 408.92, 562.47 and 333.29

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Solution

The fourth proportional to 408.92, 562.47 and 333.29 is: 458.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    408.92 : 562.47 = 333.29 : x
  2. Step 2: Convert to fraction form
    408.92/562.47 = 333.29/x
  3. Step 3: Cross multiply
    408.92x = 562.47 × 333.29
  4. Step 4: Simplify right side
    408.92x = 187,465.14
  5. Step 5: Solve for x
    x = 187,465.14/408.92
  6. Step 6: Final answer
    x = 458.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.