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Finding the Fourth Proportional to 247.75, 341.96 and 177.68

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Solution

The fourth proportional to 247.75, 341.96 and 177.68 is: 245.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.75 : 341.96 = 177.68 : x
  2. Step 2: Convert to fraction form
    247.75/341.96 = 177.68/x
  3. Step 3: Cross multiply
    247.75x = 341.96 × 177.68
  4. Step 4: Simplify right side
    247.75x = 60,759.45
  5. Step 5: Solve for x
    x = 60,759.45/247.75
  6. Step 6: Final answer
    x = 245.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.