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Finding the Fourth Proportional to 246.49, 340.11 and 141.56

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Solution

The fourth proportional to 246.49, 340.11 and 141.56 is: 195.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.49 : 340.11 = 141.56 : x
  2. Step 2: Convert to fraction form
    246.49/340.11 = 141.56/x
  3. Step 3: Cross multiply
    246.49x = 340.11 × 141.56
  4. Step 4: Simplify right side
    246.49x = 48,145.97
  5. Step 5: Solve for x
    x = 48,145.97/246.49
  6. Step 6: Final answer
    x = 195.33

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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.