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Finding the Fourth Proportional to 246.17, 338.55 and 196.97

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Solution

The fourth proportional to 246.17, 338.55 and 196.97 is: 270.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.17 : 338.55 = 196.97 : x
  2. Step 2: Convert to fraction form
    246.17/338.55 = 196.97/x
  3. Step 3: Cross multiply
    246.17x = 338.55 × 196.97
  4. Step 4: Simplify right side
    246.17x = 66,682.50
  5. Step 5: Solve for x
    x = 66,682.50/246.17
  6. Step 6: Final answer
    x = 270.89

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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.