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Finding the Fourth Proportional to 327.65, 452.23 and 217.13

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Solution

The fourth proportional to 327.65, 452.23 and 217.13 is: 299.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.65 : 452.23 = 217.13 : x
  2. Step 2: Convert to fraction form
    327.65/452.23 = 217.13/x
  3. Step 3: Cross multiply
    327.65x = 452.23 × 217.13
  4. Step 4: Simplify right side
    327.65x = 98,193.66
  5. Step 5: Solve for x
    x = 98,193.66/327.65
  6. Step 6: Final answer
    x = 299.70

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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.