Home / 321,823.30-482,891.75-132,340.60

Finding the Fourth Proportional to 321,823.30, 482,891.75 and 132,340.60

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Solution

The fourth proportional to 321,823.30, 482,891.75 and 132,340.60 is: 198,575.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,823.30 : 482,891.75 = 132,340.60 : x
  2. Step 2: Convert to fraction form
    321,823.30/482,891.75 = 132,340.60/x
  3. Step 3: Cross multiply
    321,823.30x = 482,891.75 × 132,340.60
  4. Step 4: Simplify right side
    321,823.30x = 63,906,183,930.05
  5. Step 5: Solve for x
    x = 63,906,183,930.05/321,823.30
  6. Step 6: Final answer
    x = 198,575.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.