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Finding the Fourth Proportional to 327.04, 450.72 and 249.60

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Solution

The fourth proportional to 327.04, 450.72 and 249.60 is: 343.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.04 : 450.72 = 249.60 : x
  2. Step 2: Convert to fraction form
    327.04/450.72 = 249.60/x
  3. Step 3: Cross multiply
    327.04x = 450.72 × 249.60
  4. Step 4: Simplify right side
    327.04x = 112,499.71
  5. Step 5: Solve for x
    x = 112,499.71/327.04
  6. Step 6: Final answer
    x = 343.99

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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.