Home / 321,198.20-443,257.08-177,960.50

Finding the Fourth Proportional to 321,198.20, 443,257.08 and 177,960.50

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Solution

The fourth proportional to 321,198.20, 443,257.08 and 177,960.50 is: 245,587.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,198.20 : 443,257.08 = 177,960.50 : x
  2. Step 2: Convert to fraction form
    321,198.20/443,257.08 = 177,960.50/x
  3. Step 3: Cross multiply
    321,198.20x = 443,257.08 × 177,960.50
  4. Step 4: Simplify right side
    321,198.20x = 78,882,251,585.34
  5. Step 5: Solve for x
    x = 78,882,251,585.34/321,198.20
  6. Step 6: Final answer
    x = 245,587.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.