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Finding the Fourth Proportional to 327.55, 452.03 and 203.22

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Solution

The fourth proportional to 327.55, 452.03 and 203.22 is: 280.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.55 : 452.03 = 203.22 : x
  2. Step 2: Convert to fraction form
    327.55/452.03 = 203.22/x
  3. Step 3: Cross multiply
    327.55x = 452.03 × 203.22
  4. Step 4: Simplify right side
    327.55x = 91,858.26
  5. Step 5: Solve for x
    x = 91,858.26/327.55
  6. Step 6: Final answer
    x = 280.44

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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.