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Finding the Fourth Proportional to 246.42, 371.45 and 240.90

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Solution

The fourth proportional to 246.42, 371.45 and 240.90 is: 363.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.42 : 371.45 = 240.90 : x
  2. Step 2: Convert to fraction form
    246.42/371.45 = 240.90/x
  3. Step 3: Cross multiply
    246.42x = 371.45 × 240.90
  4. Step 4: Simplify right side
    246.42x = 89,481.10
  5. Step 5: Solve for x
    x = 89,481.10/246.42
  6. Step 6: Final answer
    x = 363.12

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.