Home / 321,229.05-443,343.29-185,236.43

Finding the Fourth Proportional to 321,229.05, 443,343.29 and 185,236.43

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Solution

The fourth proportional to 321,229.05, 443,343.29 and 185,236.43 is: 255,653.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,229.05 : 443,343.29 = 185,236.43 : x
  2. Step 2: Convert to fraction form
    321,229.05/443,343.29 = 185,236.43/x
  3. Step 3: Cross multiply
    321,229.05x = 443,343.29 × 185,236.43
  4. Step 4: Simplify right side
    321,229.05x = 82,123,328,304.05
  5. Step 5: Solve for x
    x = 82,123,328,304.05/321,229.05
  6. Step 6: Final answer
    x = 255,653.49

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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.