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Finding the Fourth Proportional to 683.87, 1,026 and 196.92

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Solution

The fourth proportional to 683.87, 1,026 and 196.92 is: 295.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    683.87 : 1,026 = 196.92 : x
  2. Step 2: Convert to fraction form
    683.87/1,026 = 196.92/x
  3. Step 3: Cross multiply
    683.87x = 1,026 × 196.92
  4. Step 4: Simplify right side
    683.87x = 202,039.92
  5. Step 5: Solve for x
    x = 202,039.92/683.87
  6. Step 6: Final answer
    x = 295.44

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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.