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Finding the Fourth Proportional to 247.29, 367.75 and 239.60

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Solution

The fourth proportional to 247.29, 367.75 and 239.60 is: 356.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.29 : 367.75 = 239.60 : x
  2. Step 2: Convert to fraction form
    247.29/367.75 = 239.60/x
  3. Step 3: Cross multiply
    247.29x = 367.75 × 239.60
  4. Step 4: Simplify right side
    247.29x = 88,112.90
  5. Step 5: Solve for x
    x = 88,112.90/247.29
  6. Step 6: Final answer
    x = 356.31

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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.