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Finding the Fourth Proportional to 247.34, 339.34 and 240.95

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Solution

The fourth proportional to 247.34, 339.34 and 240.95 is: 330.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.34 : 339.34 = 240.95 : x
  2. Step 2: Convert to fraction form
    247.34/339.34 = 240.95/x
  3. Step 3: Cross multiply
    247.34x = 339.34 × 240.95
  4. Step 4: Simplify right side
    247.34x = 81,763.97
  5. Step 5: Solve for x
    x = 81,763.97/247.34
  6. Step 6: Final answer
    x = 330.57

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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.