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Finding the Fourth Proportional to 327.69, 452.43 and 252.87

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Solution

The fourth proportional to 327.69, 452.43 and 252.87 is: 349.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.69 : 452.43 = 252.87 : x
  2. Step 2: Convert to fraction form
    327.69/452.43 = 252.87/x
  3. Step 3: Cross multiply
    327.69x = 452.43 × 252.87
  4. Step 4: Simplify right side
    327.69x = 114,403.71
  5. Step 5: Solve for x
    x = 114,403.71/327.69
  6. Step 6: Final answer
    x = 349.12

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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.