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Finding the Fourth Proportional to 489.36, 734.04 and 200.60

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Solution

The fourth proportional to 489.36, 734.04 and 200.60 is: 300.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    489.36 : 734.04 = 200.60 : x
  2. Step 2: Convert to fraction form
    489.36/734.04 = 200.60/x
  3. Step 3: Cross multiply
    489.36x = 734.04 × 200.60
  4. Step 4: Simplify right side
    489.36x = 147,248.42
  5. Step 5: Solve for x
    x = 147,248.42/489.36
  6. Step 6: Final answer
    x = 300.90

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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.