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Finding the Fourth Proportional to 494.38, 682.18 and 273.32

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Solution

The fourth proportional to 494.38, 682.18 and 273.32 is: 377.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    494.38 : 682.18 = 273.32 : x
  2. Step 2: Convert to fraction form
    494.38/682.18 = 273.32/x
  3. Step 3: Cross multiply
    494.38x = 682.18 × 273.32
  4. Step 4: Simplify right side
    494.38x = 186,449.34
  5. Step 5: Solve for x
    x = 186,449.34/494.38
  6. Step 6: Final answer
    x = 377.14

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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.