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Finding the Fourth Proportional to 323.16, 446.11 and 198.92

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Solution

The fourth proportional to 323.16, 446.11 and 198.92 is: 274.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.16 : 446.11 = 198.92 : x
  2. Step 2: Convert to fraction form
    323.16/446.11 = 198.92/x
  3. Step 3: Cross multiply
    323.16x = 446.11 × 198.92
  4. Step 4: Simplify right side
    323.16x = 88,742.77
  5. Step 5: Solve for x
    x = 88,742.77/323.16
  6. Step 6: Final answer
    x = 274.61

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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.