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Finding the Fourth Proportional to 243.98, 337.02 and 195.20

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Solution

The fourth proportional to 243.98, 337.02 and 195.20 is: 269.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.98 : 337.02 = 195.20 : x
  2. Step 2: Convert to fraction form
    243.98/337.02 = 195.20/x
  3. Step 3: Cross multiply
    243.98x = 337.02 × 195.20
  4. Step 4: Simplify right side
    243.98x = 65,786.30
  5. Step 5: Solve for x
    x = 65,786.30/243.98
  6. Step 6: Final answer
    x = 269.64

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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.