Home / 225,617.45-311,338.55-123,622.61

Finding the Fourth Proportional to 225,617.45, 311,338.55 and 123,622.61

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Solution

The fourth proportional to 225,617.45, 311,338.55 and 123,622.61 is: 170,591.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,617.45 : 311,338.55 = 123,622.61 : x
  2. Step 2: Convert to fraction form
    225,617.45/311,338.55 = 123,622.61/x
  3. Step 3: Cross multiply
    225,617.45x = 311,338.55 × 123,622.61
  4. Step 4: Simplify right side
    225,617.45x = 38,488,482,896.98
  5. Step 5: Solve for x
    x = 38,488,482,896.98/225,617.45
  6. Step 6: Final answer
    x = 170,591.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.