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Finding the Fourth Proportional to 324.11, 447.23 and 236.63

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Solution

The fourth proportional to 324.11, 447.23 and 236.63 is: 326.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    324.11 : 447.23 = 236.63 : x
  2. Step 2: Convert to fraction form
    324.11/447.23 = 236.63/x
  3. Step 3: Cross multiply
    324.11x = 447.23 × 236.63
  4. Step 4: Simplify right side
    324.11x = 105,824.62
  5. Step 5: Solve for x
    x = 105,824.62/324.11
  6. Step 6: Final answer
    x = 326.51

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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.