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Finding the Fourth Proportional to 202,745.70, 303,906.96 and 90,478.44

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Solution

The fourth proportional to 202,745.70, 303,906.96 and 90,478.44 is: 135,623.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,745.70 : 303,906.96 = 90,478.44 : x
  2. Step 2: Convert to fraction form
    202,745.70/303,906.96 = 90,478.44/x
  3. Step 3: Cross multiply
    202,745.70x = 303,906.96 × 90,478.44
  4. Step 4: Simplify right side
    202,745.70x = 27,497,027,645.94
  5. Step 5: Solve for x
    x = 27,497,027,645.94/202,745.70
  6. Step 6: Final answer
    x = 135,623.23

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1.5x scale

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.