Home / 321,180.89-443,437.61-206,511.03

Finding the Fourth Proportional to 321,180.89, 443,437.61 and 206,511.03

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Solution

The fourth proportional to 321,180.89, 443,437.61 and 206,511.03 is: 285,118.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,180.89 : 443,437.61 = 206,511.03 : x
  2. Step 2: Convert to fraction form
    321,180.89/443,437.61 = 206,511.03/x
  3. Step 3: Cross multiply
    321,180.89x = 443,437.61 × 206,511.03
  4. Step 4: Simplify right side
    321,180.89x = 91,574,757,581.84
  5. Step 5: Solve for x
    x = 91,574,757,581.84/321,180.89
  6. Step 6: Final answer
    x = 285,118.95

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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.