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Finding the Fourth Proportional to 254.73, 382.45 and 196.99

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Solution

The fourth proportional to 254.73, 382.45 and 196.99 is: 295.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.73 : 382.45 = 196.99 : x
  2. Step 2: Convert to fraction form
    254.73/382.45 = 196.99/x
  3. Step 3: Cross multiply
    254.73x = 382.45 × 196.99
  4. Step 4: Simplify right side
    254.73x = 75,338.83
  5. Step 5: Solve for x
    x = 75,338.83/254.73
  6. Step 6: Final answer
    x = 295.76

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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.