Home / 221,205.38-331,809.28-54,993.38

Finding the Fourth Proportional to 221,205.38, 331,809.28 and 54,993.38

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Solution

The fourth proportional to 221,205.38, 331,809.28 and 54,993.38 is: 82,490.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,205.38 : 331,809.28 = 54,993.38 : x
  2. Step 2: Convert to fraction form
    221,205.38/331,809.28 = 54,993.38/x
  3. Step 3: Cross multiply
    221,205.38x = 331,809.28 × 54,993.38
  4. Step 4: Simplify right side
    221,205.38x = 18,247,313,822.57
  5. Step 5: Solve for x
    x = 18,247,313,822.57/221,205.38
  6. Step 6: Final answer
    x = 82,490.37

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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.