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Finding the Fourth Proportional to 323.68, 446.64 and 199.37

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Solution

The fourth proportional to 323.68, 446.64 and 199.37 is: 275.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.68 : 446.64 = 199.37 : x
  2. Step 2: Convert to fraction form
    323.68/446.64 = 199.37/x
  3. Step 3: Cross multiply
    323.68x = 446.64 × 199.37
  4. Step 4: Simplify right side
    323.68x = 89,046.62
  5. Step 5: Solve for x
    x = 89,046.62/323.68
  6. Step 6: Final answer
    x = 275.11

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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.