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Finding the Fourth Proportional to 301.38, 451.22 and 197.39

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Solution

The fourth proportional to 301.38, 451.22 and 197.39 is: 295.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.38 : 451.22 = 197.39 : x
  2. Step 2: Convert to fraction form
    301.38/451.22 = 197.39/x
  3. Step 3: Cross multiply
    301.38x = 451.22 × 197.39
  4. Step 4: Simplify right side
    301.38x = 89,064.38
  5. Step 5: Solve for x
    x = 89,064.38/301.38
  6. Step 6: Final answer
    x = 295.52

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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.