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Finding the Fourth Proportional to 150,003.80, 225,264.90 and 80,019.80

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Solution

The fourth proportional to 150,003.80, 225,264.90 and 80,019.80 is: 120,167.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,003.80 : 225,264.90 = 80,019.80 : x
  2. Step 2: Convert to fraction form
    150,003.80/225,264.90 = 80,019.80/x
  3. Step 3: Cross multiply
    150,003.80x = 225,264.90 × 80,019.80
  4. Step 4: Simplify right side
    150,003.80x = 18,025,652,245.02
  5. Step 5: Solve for x
    x = 18,025,652,245.02/150,003.80
  6. Step 6: Final answer
    x = 120,167.97

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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.