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Finding the Fourth Proportional to 229.49, 343.97 and 130.75

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Solution

The fourth proportional to 229.49, 343.97 and 130.75 is: 195.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    229.49 : 343.97 = 130.75 : x
  2. Step 2: Convert to fraction form
    229.49/343.97 = 130.75/x
  3. Step 3: Cross multiply
    229.49x = 343.97 × 130.75
  4. Step 4: Simplify right side
    229.49x = 44,974.08
  5. Step 5: Solve for x
    x = 44,974.08/229.49
  6. Step 6: Final answer
    x = 195.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.