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Finding the Fourth Proportional to 344.73, 475.56 and 213.78

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Solution

The fourth proportional to 344.73, 475.56 and 213.78 is: 294.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.73 : 475.56 = 213.78 : x
  2. Step 2: Convert to fraction form
    344.73/475.56 = 213.78/x
  3. Step 3: Cross multiply
    344.73x = 475.56 × 213.78
  4. Step 4: Simplify right side
    344.73x = 101,665.22
  5. Step 5: Solve for x
    x = 101,665.22/344.73
  6. Step 6: Final answer
    x = 294.91

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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.