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Finding the Fourth Proportional to 327.63, 452.15 and 217.03

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Solution

The fourth proportional to 327.63, 452.15 and 217.03 is: 299.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.63 : 452.15 = 217.03 : x
  2. Step 2: Convert to fraction form
    327.63/452.15 = 217.03/x
  3. Step 3: Cross multiply
    327.63x = 452.15 × 217.03
  4. Step 4: Simplify right side
    327.63x = 98,130.02
  5. Step 5: Solve for x
    x = 98,130.02/327.63
  6. Step 6: Final answer
    x = 299.51

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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.