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Finding the Fourth Proportional to 269,574.89, 404,293.11 and 79,990.41

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Solution

The fourth proportional to 269,574.89, 404,293.11 and 79,990.41 is: 119,965.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,574.89 : 404,293.11 = 79,990.41 : x
  2. Step 2: Convert to fraction form
    269,574.89/404,293.11 = 79,990.41/x
  3. Step 3: Cross multiply
    269,574.89x = 404,293.11 × 79,990.41
  4. Step 4: Simplify right side
    269,574.89x = 32,339,571,629.08
  5. Step 5: Solve for x
    x = 32,339,571,629.08/269,574.89
  6. Step 6: Final answer
    x = 119,965.07

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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.