Home / 326,143.92-489,231.24-269,112.02

Finding the Fourth Proportional to 326,143.92, 489,231.24 and 269,112.02

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Solution

The fourth proportional to 326,143.92, 489,231.24 and 269,112.02 is: 403,680.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,143.92 : 489,231.24 = 269,112.02 : x
  2. Step 2: Convert to fraction form
    326,143.92/489,231.24 = 269,112.02/x
  3. Step 3: Cross multiply
    326,143.92x = 489,231.24 × 269,112.02
  4. Step 4: Simplify right side
    326,143.92x = 131,658,008,053.86
  5. Step 5: Solve for x
    x = 131,658,008,053.86/326,143.92
  6. Step 6: Final answer
    x = 403,680.71

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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.