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Finding the Fourth Proportional to 376.21, 562.94 and 229.43

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Solution

The fourth proportional to 376.21, 562.94 and 229.43 is: 343.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.21 : 562.94 = 229.43 : x
  2. Step 2: Convert to fraction form
    376.21/562.94 = 229.43/x
  3. Step 3: Cross multiply
    376.21x = 562.94 × 229.43
  4. Step 4: Simplify right side
    376.21x = 129,155.32
  5. Step 5: Solve for x
    x = 129,155.32/376.21
  6. Step 6: Final answer
    x = 343.31

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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.