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Finding the Fourth Proportional to 323.96, 447.05 and 176.59

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Solution

The fourth proportional to 323.96, 447.05 and 176.59 is: 243.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.96 : 447.05 = 176.59 : x
  2. Step 2: Convert to fraction form
    323.96/447.05 = 176.59/x
  3. Step 3: Cross multiply
    323.96x = 447.05 × 176.59
  4. Step 4: Simplify right side
    323.96x = 78,944.57
  5. Step 5: Solve for x
    x = 78,944.57/323.96
  6. Step 6: Final answer
    x = 243.69

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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.