Home / 336,769.20-505,226.70-100,135.80

Finding the Fourth Proportional to 336,769.20, 505,226.70 and 100,135.80

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Solution

The fourth proportional to 336,769.20, 505,226.70 and 100,135.80 is: 150,225.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,769.20 : 505,226.70 = 100,135.80 : x
  2. Step 2: Convert to fraction form
    336,769.20/505,226.70 = 100,135.80/x
  3. Step 3: Cross multiply
    336,769.20x = 505,226.70 × 100,135.80
  4. Step 4: Simplify right side
    336,769.20x = 50,591,279,785.86
  5. Step 5: Solve for x
    x = 50,591,279,785.86/336,769.20
  6. Step 6: Final answer
    x = 150,225.38

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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.