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Finding the Fourth Proportional to 249.13, 345.45 and 240.93

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Solution

The fourth proportional to 249.13, 345.45 and 240.93 is: 334.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.13 : 345.45 = 240.93 : x
  2. Step 2: Convert to fraction form
    249.13/345.45 = 240.93/x
  3. Step 3: Cross multiply
    249.13x = 345.45 × 240.93
  4. Step 4: Simplify right side
    249.13x = 83,229.27
  5. Step 5: Solve for x
    x = 83,229.27/249.13
  6. Step 6: Final answer
    x = 334.08

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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.