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Finding the Fourth Proportional to 344.41, 475.45 and 239.85

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Solution

The fourth proportional to 344.41, 475.45 and 239.85 is: 331.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.41 : 475.45 = 239.85 : x
  2. Step 2: Convert to fraction form
    344.41/475.45 = 239.85/x
  3. Step 3: Cross multiply
    344.41x = 475.45 × 239.85
  4. Step 4: Simplify right side
    344.41x = 114,036.08
  5. Step 5: Solve for x
    x = 114,036.08/344.41
  6. Step 6: Final answer
    x = 331.11

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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.