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Finding the Fourth Proportional to 246.38, 338.56 and 197.18

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Solution

The fourth proportional to 246.38, 338.56 and 197.18 is: 270.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.38 : 338.56 = 197.18 : x
  2. Step 2: Convert to fraction form
    246.38/338.56 = 197.18/x
  3. Step 3: Cross multiply
    246.38x = 338.56 × 197.18
  4. Step 4: Simplify right side
    246.38x = 66,756.50
  5. Step 5: Solve for x
    x = 66,756.50/246.38
  6. Step 6: Final answer
    x = 270.95

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.