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Finding the Fourth Proportional to 324.26, 447.42 and 191.52

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Solution

The fourth proportional to 324.26, 447.42 and 191.52 is: 264.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    324.26 : 447.42 = 191.52 : x
  2. Step 2: Convert to fraction form
    324.26/447.42 = 191.52/x
  3. Step 3: Cross multiply
    324.26x = 447.42 × 191.52
  4. Step 4: Simplify right side
    324.26x = 85,689.88
  5. Step 5: Solve for x
    x = 85,689.88/324.26
  6. Step 6: Final answer
    x = 264.26

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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.