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Finding the Fourth Proportional to 198,241.56, 297,657.59 and 80,143.56

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Solution

The fourth proportional to 198,241.56, 297,657.59 and 80,143.56 is: 120,334.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,241.56 : 297,657.59 = 80,143.56 : x
  2. Step 2: Convert to fraction form
    198,241.56/297,657.59 = 80,143.56/x
  3. Step 3: Cross multiply
    198,241.56x = 297,657.59 × 80,143.56
  4. Step 4: Simplify right side
    198,241.56x = 23,855,338,522.90
  5. Step 5: Solve for x
    x = 23,855,338,522.90/198,241.56
  6. Step 6: Final answer
    x = 120,334.70

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1.5x scale

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.