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Finding the Fourth Proportional to 246.01, 339.49 and 142.49

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Solution

The fourth proportional to 246.01, 339.49 and 142.49 is: 196.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.01 : 339.49 = 142.49 : x
  2. Step 2: Convert to fraction form
    246.01/339.49 = 142.49/x
  3. Step 3: Cross multiply
    246.01x = 339.49 × 142.49
  4. Step 4: Simplify right side
    246.01x = 48,373.22
  5. Step 5: Solve for x
    x = 48,373.22/246.01
  6. Step 6: Final answer
    x = 196.63

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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.