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Finding the Fourth Proportional to 254.59, 349.25 and 240.61

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Solution

The fourth proportional to 254.59, 349.25 and 240.61 is: 330.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.59 : 349.25 = 240.61 : x
  2. Step 2: Convert to fraction form
    254.59/349.25 = 240.61/x
  3. Step 3: Cross multiply
    254.59x = 349.25 × 240.61
  4. Step 4: Simplify right side
    254.59x = 84,033.04
  5. Step 5: Solve for x
    x = 84,033.04/254.59
  6. Step 6: Final answer
    x = 330.07

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.