Home / 321,984.91-482,961.78-122,289.71

Finding the Fourth Proportional to 321,984.91, 482,961.78 and 122,289.71

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Solution

The fourth proportional to 321,984.91, 482,961.78 and 122,289.71 is: 183,428.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,984.91 : 482,961.78 = 122,289.71 : x
  2. Step 2: Convert to fraction form
    321,984.91/482,961.78 = 122,289.71/x
  3. Step 3: Cross multiply
    321,984.91x = 482,961.78 × 122,289.71
  4. Step 4: Simplify right side
    321,984.91x = 59,061,256,826.33
  5. Step 5: Solve for x
    x = 59,061,256,826.33/321,984.91
  6. Step 6: Final answer
    x = 183,428.65

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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.