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Finding the Fourth Proportional to 297.76, 410.74 and 213.73

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Solution

The fourth proportional to 297.76, 410.74 and 213.73 is: 294.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.76 : 410.74 = 213.73 : x
  2. Step 2: Convert to fraction form
    297.76/410.74 = 213.73/x
  3. Step 3: Cross multiply
    297.76x = 410.74 × 213.73
  4. Step 4: Simplify right side
    297.76x = 87,787.05
  5. Step 5: Solve for x
    x = 87,787.05/297.76
  6. Step 6: Final answer
    x = 294.83

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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.