Home / 225,376.22-311,009.58-123,399.83

Finding the Fourth Proportional to 225,376.22, 311,009.58 and 123,399.83

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Solution

The fourth proportional to 225,376.22, 311,009.58 and 123,399.83 is: 170,286.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,376.22 : 311,009.58 = 123,399.83 : x
  2. Step 2: Convert to fraction form
    225,376.22/311,009.58 = 123,399.83/x
  3. Step 3: Cross multiply
    225,376.22x = 311,009.58 × 123,399.83
  4. Step 4: Simplify right side
    225,376.22x = 38,378,527,745.32
  5. Step 5: Solve for x
    x = 38,378,527,745.32/225,376.22
  6. Step 6: Final answer
    x = 170,286.50

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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.