Home / 321,635.81-443,566.83-200,788.27

Finding the Fourth Proportional to 321,635.81, 443,566.83 and 200,788.27

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Solution

The fourth proportional to 321,635.81, 443,566.83 and 200,788.27 is: 276,906.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,635.81 : 443,566.83 = 200,788.27 : x
  2. Step 2: Convert to fraction form
    321,635.81/443,566.83 = 200,788.27/x
  3. Step 3: Cross multiply
    321,635.81x = 443,566.83 × 200,788.27
  4. Step 4: Simplify right side
    321,635.81x = 89,063,016,069.12
  5. Step 5: Solve for x
    x = 89,063,016,069.12/321,635.81
  6. Step 6: Final answer
    x = 276,906.40

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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.