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Finding the Fourth Proportional to 376.43, 564.28 and 222.40

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Solution

The fourth proportional to 376.43, 564.28 and 222.40 is: 333.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.43 : 564.28 = 222.40 : x
  2. Step 2: Convert to fraction form
    376.43/564.28 = 222.40/x
  3. Step 3: Cross multiply
    376.43x = 564.28 × 222.40
  4. Step 4: Simplify right side
    376.43x = 125,495.87
  5. Step 5: Solve for x
    x = 125,495.87/376.43
  6. Step 6: Final answer
    x = 333.38

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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.