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Finding the Fourth Proportional to 324.07, 447.49 and 213.50

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Solution

The fourth proportional to 324.07, 447.49 and 213.50 is: 294.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    324.07 : 447.49 = 213.50 : x
  2. Step 2: Convert to fraction form
    324.07/447.49 = 213.50/x
  3. Step 3: Cross multiply
    324.07x = 447.49 × 213.50
  4. Step 4: Simplify right side
    324.07x = 95,540.50
  5. Step 5: Solve for x
    x = 95,540.50/324.07
  6. Step 6: Final answer
    x = 294.82

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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.