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Finding the Fourth Proportional to 273.46, 410.20 and 205.35

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Solution

The fourth proportional to 273.46, 410.20 and 205.35 is: 308.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.46 : 410.20 = 205.35 : x
  2. Step 2: Convert to fraction form
    273.46/410.20 = 205.35/x
  3. Step 3: Cross multiply
    273.46x = 410.20 × 205.35
  4. Step 4: Simplify right side
    273.46x = 84,234.57
  5. Step 5: Solve for x
    x = 84,234.57/273.46
  6. Step 6: Final answer
    x = 308.03

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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.