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Finding the Fourth Proportional to 204.23, 281.84 and 116.91

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Solution

The fourth proportional to 204.23, 281.84 and 116.91 is: 161.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    204.23 : 281.84 = 116.91 : x
  2. Step 2: Convert to fraction form
    204.23/281.84 = 116.91/x
  3. Step 3: Cross multiply
    204.23x = 281.84 × 116.91
  4. Step 4: Simplify right side
    204.23x = 32,949.91
  5. Step 5: Solve for x
    x = 32,949.91/204.23
  6. Step 6: Final answer
    x = 161.34

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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.