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Finding the Fourth Proportional to 248.13, 344.07 and 239.94

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Solution

The fourth proportional to 248.13, 344.07 and 239.94 is: 332.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.13 : 344.07 = 239.94 : x
  2. Step 2: Convert to fraction form
    248.13/344.07 = 239.94/x
  3. Step 3: Cross multiply
    248.13x = 344.07 × 239.94
  4. Step 4: Simplify right side
    248.13x = 82,556.16
  5. Step 5: Solve for x
    x = 82,556.16/248.13
  6. Step 6: Final answer
    x = 332.71

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.