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Finding the Fourth Proportional to 321,620.63, 443,545.94 and 200,773.08

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Solution

The fourth proportional to 321,620.63, 443,545.94 and 200,773.08 is: 276,885.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,620.63 : 443,545.94 = 200,773.08 : x
  2. Step 2: Convert to fraction form
    321,620.63/443,545.94 = 200,773.08/x
  3. Step 3: Cross multiply
    321,620.63x = 443,545.94 × 200,773.08
  4. Step 4: Simplify right side
    321,620.63x = 89,052,084,997.23
  5. Step 5: Solve for x
    x = 89,052,084,997.23/321,620.63
  6. Step 6: Final answer
    x = 276,885.49

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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.