Home / 225,490.41-311,173.32-123,515.04

Finding the Fourth Proportional to 225,490.41, 311,173.32 and 123,515.04

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Solution

The fourth proportional to 225,490.41, 311,173.32 and 123,515.04 is: 170,448.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,490.41 : 311,173.32 = 123,515.04 : x
  2. Step 2: Convert to fraction form
    225,490.41/311,173.32 = 123,515.04/x
  3. Step 3: Cross multiply
    225,490.41x = 311,173.32 × 123,515.04
  4. Step 4: Simplify right side
    225,490.41x = 38,434,585,066.73
  5. Step 5: Solve for x
    x = 38,434,585,066.73/225,490.41
  6. Step 6: Final answer
    x = 170,448.87

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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.