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Finding the Fourth Proportional to 321,197.82, 443,234.48 and 177,949.32

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Solution

The fourth proportional to 321,197.82, 443,234.48 and 177,949.32 is: 245,559.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,197.82 : 443,234.48 = 177,949.32 : x
  2. Step 2: Convert to fraction form
    321,197.82/443,234.48 = 177,949.32/x
  3. Step 3: Cross multiply
    321,197.82x = 443,234.48 × 177,949.32
  4. Step 4: Simplify right side
    321,197.82x = 78,873,273,426.81
  5. Step 5: Solve for x
    x = 78,873,273,426.81/321,197.82
  6. Step 6: Final answer
    x = 245,559.80

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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.