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Finding the Fourth Proportional to 323.66, 446.52 and 229.28

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Solution

The fourth proportional to 323.66, 446.52 and 229.28 is: 316.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.66 : 446.52 = 229.28 : x
  2. Step 2: Convert to fraction form
    323.66/446.52 = 229.28/x
  3. Step 3: Cross multiply
    323.66x = 446.52 × 229.28
  4. Step 4: Simplify right side
    323.66x = 102,376.73
  5. Step 5: Solve for x
    x = 102,376.73/323.66
  6. Step 6: Final answer
    x = 316.31

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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.