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Finding the Fourth Proportional to 246.74, 339.78 and 245.97

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Solution

The fourth proportional to 246.74, 339.78 and 245.97 is: 338.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.74 : 339.78 = 245.97 : x
  2. Step 2: Convert to fraction form
    246.74/339.78 = 245.97/x
  3. Step 3: Cross multiply
    246.74x = 339.78 × 245.97
  4. Step 4: Simplify right side
    246.74x = 83,575.69
  5. Step 5: Solve for x
    x = 83,575.69/246.74
  6. Step 6: Final answer
    x = 338.73

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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.