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Finding the Fourth Proportional to 376.28, 564.31 and 222.17

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Solution

The fourth proportional to 376.28, 564.31 and 222.17 is: 333.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.28 : 564.31 = 222.17 : x
  2. Step 2: Convert to fraction form
    376.28/564.31 = 222.17/x
  3. Step 3: Cross multiply
    376.28x = 564.31 × 222.17
  4. Step 4: Simplify right side
    376.28x = 125,372.75
  5. Step 5: Solve for x
    x = 125,372.75/376.28
  6. Step 6: Final answer
    x = 333.19

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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.