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Finding the Fourth Proportional to 376.29, 563.94 and 239.28

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Solution

The fourth proportional to 376.29, 563.94 and 239.28 is: 358.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.29 : 563.94 = 239.28 : x
  2. Step 2: Convert to fraction form
    376.29/563.94 = 239.28/x
  3. Step 3: Cross multiply
    376.29x = 563.94 × 239.28
  4. Step 4: Simplify right side
    376.29x = 134,939.56
  5. Step 5: Solve for x
    x = 134,939.56/376.29
  6. Step 6: Final answer
    x = 358.61

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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.