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Finding the Fourth Proportional to 198,593.77, 297,797.06 and 72,144.85

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Solution

The fourth proportional to 198,593.77, 297,797.06 and 72,144.85 is: 108,183.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,593.77 : 297,797.06 = 72,144.85 : x
  2. Step 2: Convert to fraction form
    198,593.77/297,797.06 = 72,144.85/x
  3. Step 3: Cross multiply
    198,593.77x = 297,797.06 × 72,144.85
  4. Step 4: Simplify right side
    198,593.77x = 21,484,524,224.14
  5. Step 5: Solve for x
    x = 21,484,524,224.14/198,593.77
  6. Step 6: Final answer
    x = 108,183.27

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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.