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Finding the Fourth Proportional to 376.56, 518.38 and 327.16

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Solution

The fourth proportional to 376.56, 518.38 and 327.16 is: 450.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.56 : 518.38 = 327.16 : x
  2. Step 2: Convert to fraction form
    376.56/518.38 = 327.16/x
  3. Step 3: Cross multiply
    376.56x = 518.38 × 327.16
  4. Step 4: Simplify right side
    376.56x = 169,593.20
  5. Step 5: Solve for x
    x = 169,593.20/376.56
  6. Step 6: Final answer
    x = 450.37

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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.