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Finding the Fourth Proportional to 604.38, 833.98 and 338.79

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Solution

The fourth proportional to 604.38, 833.98 and 338.79 is: 467.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.38 : 833.98 = 338.79 : x
  2. Step 2: Convert to fraction form
    604.38/833.98 = 338.79/x
  3. Step 3: Cross multiply
    604.38x = 833.98 × 338.79
  4. Step 4: Simplify right side
    604.38x = 282,540.11
  5. Step 5: Solve for x
    x = 282,540.11/604.38
  6. Step 6: Final answer
    x = 467.48

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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.