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Finding the Fourth Proportional to 321,006.68, 443,003.14 and 177,766.72

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Solution

The fourth proportional to 321,006.68, 443,003.14 and 177,766.72 is: 245,325.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,006.68 : 443,003.14 = 177,766.72 : x
  2. Step 2: Convert to fraction form
    321,006.68/443,003.14 = 177,766.72/x
  3. Step 3: Cross multiply
    321,006.68x = 443,003.14 × 177,766.72
  4. Step 4: Simplify right side
    321,006.68x = 78,751,215,850.64
  5. Step 5: Solve for x
    x = 78,751,215,850.64/321,006.68
  6. Step 6: Final answer
    x = 245,325.79

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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.