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Finding the Fourth Proportional to 203.64, 281.52 and 195.09

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Solution

The fourth proportional to 203.64, 281.52 and 195.09 is: 269.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    203.64 : 281.52 = 195.09 : x
  2. Step 2: Convert to fraction form
    203.64/281.52 = 195.09/x
  3. Step 3: Cross multiply
    203.64x = 281.52 × 195.09
  4. Step 4: Simplify right side
    203.64x = 54,921.74
  5. Step 5: Solve for x
    x = 54,921.74/203.64
  6. Step 6: Final answer
    x = 269.70

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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.