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Finding the Fourth Proportional to 198,993.62, 274,616.42 and 108,353.40

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Solution

The fourth proportional to 198,993.62, 274,616.42 and 108,353.40 is: 149,530.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,993.62 : 274,616.42 = 108,353.40 : x
  2. Step 2: Convert to fraction form
    198,993.62/274,616.42 = 108,353.40/x
  3. Step 3: Cross multiply
    198,993.62x = 274,616.42 × 108,353.40
  4. Step 4: Simplify right side
    198,993.62x = 29,755,622,261.06
  5. Step 5: Solve for x
    x = 29,755,622,261.06/198,993.62
  6. Step 6: Final answer
    x = 149,530.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.