Home / 225,741.28-311,519.42-123,767.62

Finding the Fourth Proportional to 225,741.28, 311,519.42 and 123,767.62

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Solution

The fourth proportional to 225,741.28, 311,519.42 and 123,767.62 is: 170,797.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,741.28 : 311,519.42 = 123,767.62 : x
  2. Step 2: Convert to fraction form
    225,741.28/311,519.42 = 123,767.62/x
  3. Step 3: Cross multiply
    225,741.28x = 311,519.42 × 123,767.62
  4. Step 4: Simplify right side
    225,741.28x = 38,556,017,975.98
  5. Step 5: Solve for x
    x = 38,556,017,975.98/225,741.28
  6. Step 6: Final answer
    x = 170,797.37

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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.