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Finding the Fourth Proportional to 327.86, 452.46 and 178.49

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Solution

The fourth proportional to 327.86, 452.46 and 178.49 is: 246.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.86 : 452.46 = 178.49 : x
  2. Step 2: Convert to fraction form
    327.86/452.46 = 178.49/x
  3. Step 3: Cross multiply
    327.86x = 452.46 × 178.49
  4. Step 4: Simplify right side
    327.86x = 80,759.69
  5. Step 5: Solve for x
    x = 80,759.69/327.86
  6. Step 6: Final answer
    x = 246.32

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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.