Home / 207,556.20-311,331.10-140,830.44

Finding the Fourth Proportional to 207,556.20, 311,331.10 and 140,830.44

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Solution

The fourth proportional to 207,556.20, 311,331.10 and 140,830.44 is: 211,243.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,556.20 : 311,331.10 = 140,830.44 : x
  2. Step 2: Convert to fraction form
    207,556.20/311,331.10 = 140,830.44/x
  3. Step 3: Cross multiply
    207,556.20x = 311,331.10 × 140,830.44
  4. Step 4: Simplify right side
    207,556.20x = 43,844,895,798.68
  5. Step 5: Solve for x
    x = 43,844,895,798.68/207,556.20
  6. Step 6: Final answer
    x = 211,243.49

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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.