Home / 221,201.57-331,039.98-135,755.73

Finding the Fourth Proportional to 221,201.57, 331,039.98 and 135,755.73

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Solution

The fourth proportional to 221,201.57, 331,039.98 and 135,755.73 is: 203,165.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,201.57 : 331,039.98 = 135,755.73 : x
  2. Step 2: Convert to fraction form
    221,201.57/331,039.98 = 135,755.73/x
  3. Step 3: Cross multiply
    221,201.57x = 331,039.98 × 135,755.73
  4. Step 4: Simplify right side
    221,201.57x = 44,940,574,144.09
  5. Step 5: Solve for x
    x = 44,940,574,144.09/221,201.57
  6. Step 6: Final answer
    x = 203,165.71

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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.