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Finding the Fourth Proportional to 393,969.33, 591,284.61 and 204,545.97

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Solution

The fourth proportional to 393,969.33, 591,284.61 and 204,545.97 is: 306,990.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,969.33 : 591,284.61 = 204,545.97 : x
  2. Step 2: Convert to fraction form
    393,969.33/591,284.61 = 204,545.97/x
  3. Step 3: Cross multiply
    393,969.33x = 591,284.61 × 204,545.97
  4. Step 4: Simplify right side
    393,969.33x = 120,944,884,098.52
  5. Step 5: Solve for x
    x = 120,944,884,098.52/393,969.33
  6. Step 6: Final answer
    x = 306,990.61

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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.