Home / 313,738.20-470,618.34-100,512.60

Finding the Fourth Proportional to 313,738.20, 470,618.34 and 100,512.60

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Solution

The fourth proportional to 313,738.20, 470,618.34 and 100,512.60 is: 150,772.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,738.20 : 470,618.34 = 100,512.60 : x
  2. Step 2: Convert to fraction form
    313,738.20/470,618.34 = 100,512.60/x
  3. Step 3: Cross multiply
    313,738.20x = 470,618.34 × 100,512.60
  4. Step 4: Simplify right side
    313,738.20x = 47,303,072,961.08
  5. Step 5: Solve for x
    x = 47,303,072,961.08/313,738.20
  6. Step 6: Final answer
    x = 150,772.44

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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.