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Finding the Fourth Proportional to 344.26, 475.12 and 239.32

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Solution

The fourth proportional to 344.26, 475.12 and 239.32 is: 330.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.26 : 475.12 = 239.32 : x
  2. Step 2: Convert to fraction form
    344.26/475.12 = 239.32/x
  3. Step 3: Cross multiply
    344.26x = 475.12 × 239.32
  4. Step 4: Simplify right side
    344.26x = 113,705.72
  5. Step 5: Solve for x
    x = 113,705.72/344.26
  6. Step 6: Final answer
    x = 330.29

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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.