Home / 436,198.72-654,247.38-120,680.20

Finding the Fourth Proportional to 436,198.72, 654,247.38 and 120,680.20

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Solution

The fourth proportional to 436,198.72, 654,247.38 and 120,680.20 is: 181,006.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,198.72 : 654,247.38 = 120,680.20 : x
  2. Step 2: Convert to fraction form
    436,198.72/654,247.38 = 120,680.20/x
  3. Step 3: Cross multiply
    436,198.72x = 654,247.38 × 120,680.20
  4. Step 4: Simplify right side
    436,198.72x = 78,954,704,667.88
  5. Step 5: Solve for x
    x = 78,954,704,667.88/436,198.72
  6. Step 6: Final answer
    x = 181,006.27

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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.