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Finding the Fourth Proportional to 246.16, 338.97 and 197.11

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Solution

The fourth proportional to 246.16, 338.97 and 197.11 is: 271.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.16 : 338.97 = 197.11 : x
  2. Step 2: Convert to fraction form
    246.16/338.97 = 197.11/x
  3. Step 3: Cross multiply
    246.16x = 338.97 × 197.11
  4. Step 4: Simplify right side
    246.16x = 66,814.38
  5. Step 5: Solve for x
    x = 66,814.38/246.16
  6. Step 6: Final answer
    x = 271.43

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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.