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Finding the Fourth Proportional to 321,618.33, 443,542.86 and 200,770.79

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Solution

The fourth proportional to 321,618.33, 443,542.86 and 200,770.79 is: 276,882.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,618.33 : 443,542.86 = 200,770.79 : x
  2. Step 2: Convert to fraction form
    321,618.33/443,542.86 = 200,770.79/x
  3. Step 3: Cross multiply
    321,618.33x = 443,542.86 × 200,770.79
  4. Step 4: Simplify right side
    321,618.33x = 89,050,448,183.35
  5. Step 5: Solve for x
    x = 89,050,448,183.35/321,618.33
  6. Step 6: Final answer
    x = 276,882.38

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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.