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Finding the Fourth Proportional to 269,574.95, 404,293.20 and 79,990.47

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Solution

The fourth proportional to 269,574.95, 404,293.20 and 79,990.47 is: 119,965.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,574.95 : 404,293.20 = 79,990.47 : x
  2. Step 2: Convert to fraction form
    269,574.95/404,293.20 = 79,990.47/x
  3. Step 3: Cross multiply
    269,574.95x = 404,293.20 × 79,990.47
  4. Step 4: Simplify right side
    269,574.95x = 32,339,603,085.80
  5. Step 5: Solve for x
    x = 32,339,603,085.80/269,574.95
  6. Step 6: Final answer
    x = 119,965.16

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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.