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Finding the Fourth Proportional to 248.11, 369.97 and 230.79

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Solution

The fourth proportional to 248.11, 369.97 and 230.79 is: 344.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.11 : 369.97 = 230.79 : x
  2. Step 2: Convert to fraction form
    248.11/369.97 = 230.79/x
  3. Step 3: Cross multiply
    248.11x = 369.97 × 230.79
  4. Step 4: Simplify right side
    248.11x = 85,385.66
  5. Step 5: Solve for x
    x = 85,385.66/248.11
  6. Step 6: Final answer
    x = 344.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.