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Finding the Fourth Proportional to 324.66, 447.69 and 250.82

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Solution

The fourth proportional to 324.66, 447.69 and 250.82 is: 345.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    324.66 : 447.69 = 250.82 : x
  2. Step 2: Convert to fraction form
    324.66/447.69 = 250.82/x
  3. Step 3: Cross multiply
    324.66x = 447.69 × 250.82
  4. Step 4: Simplify right side
    324.66x = 112,289.61
  5. Step 5: Solve for x
    x = 112,289.61/324.66
  6. Step 6: Final answer
    x = 345.87

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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.