Home / 329,105.73-493,837.20-139,672.65

Finding the Fourth Proportional to 329,105.73, 493,837.20 and 139,672.65

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Solution

The fourth proportional to 329,105.73, 493,837.20 and 139,672.65 is: 209,584.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,105.73 : 493,837.20 = 139,672.65 : x
  2. Step 2: Convert to fraction form
    329,105.73/493,837.20 = 139,672.65/x
  3. Step 3: Cross multiply
    329,105.73x = 493,837.20 × 139,672.65
  4. Step 4: Simplify right side
    329,105.73x = 68,975,550,392.58
  5. Step 5: Solve for x
    x = 68,975,550,392.58/329,105.73
  6. Step 6: Final answer
    x = 209,584.78

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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.