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Finding the Fourth Proportional to 489.73, 734.60 and 200.97

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Solution

The fourth proportional to 489.73, 734.60 and 200.97 is: 301.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    489.73 : 734.60 = 200.97 : x
  2. Step 2: Convert to fraction form
    489.73/734.60 = 200.97/x
  3. Step 3: Cross multiply
    489.73x = 734.60 × 200.97
  4. Step 4: Simplify right side
    489.73x = 147,632.56
  5. Step 5: Solve for x
    x = 147,632.56/489.73
  6. Step 6: Final answer
    x = 301.46

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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.