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Finding the Fourth Proportional to 379.25, 569.07 and 196.73

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Solution

The fourth proportional to 379.25, 569.07 and 196.73 is: 295.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    379.25 : 569.07 = 196.73 : x
  2. Step 2: Convert to fraction form
    379.25/569.07 = 196.73/x
  3. Step 3: Cross multiply
    379.25x = 569.07 × 196.73
  4. Step 4: Simplify right side
    379.25x = 111,953.14
  5. Step 5: Solve for x
    x = 111,953.14/379.25
  6. Step 6: Final answer
    x = 295.20

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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.