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Finding the Fourth Proportional to 200,534.28, 300,839.37 and 80,600.56

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Solution

The fourth proportional to 200,534.28, 300,839.37 and 80,600.56 is: 120,916.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,534.28 : 300,839.37 = 80,600.56 : x
  2. Step 2: Convert to fraction form
    200,534.28/300,839.37 = 80,600.56/x
  3. Step 3: Cross multiply
    200,534.28x = 300,839.37 × 80,600.56
  4. Step 4: Simplify right side
    200,534.28x = 24,247,821,692.05
  5. Step 5: Solve for x
    x = 24,247,821,692.05/200,534.28
  6. Step 6: Final answer
    x = 120,916.09

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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.