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Finding the Fourth Proportional to 327.00, 490.28 and 121.52

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Solution

The fourth proportional to 327.00, 490.28 and 121.52 is: 182.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.00 : 490.28 = 121.52 : x
  2. Step 2: Convert to fraction form
    327.00/490.28 = 121.52/x
  3. Step 3: Cross multiply
    327.00x = 490.28 × 121.52
  4. Step 4: Simplify right side
    327.00x = 59,577.03
  5. Step 5: Solve for x
    x = 59,577.03/327.00
  6. Step 6: Final answer
    x = 182.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.