Home / 225,786.10-311,599.23-149,170.80

Finding the Fourth Proportional to 225,786.10, 311,599.23 and 149,170.80

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Solution

The fourth proportional to 225,786.10, 311,599.23 and 149,170.80 is: 205,865.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,786.10 : 311,599.23 = 149,170.80 : x
  2. Step 2: Convert to fraction form
    225,786.10/311,599.23 = 149,170.80/x
  3. Step 3: Cross multiply
    225,786.10x = 311,599.23 × 149,170.80
  4. Step 4: Simplify right side
    225,786.10x = 46,481,506,418.48
  5. Step 5: Solve for x
    x = 46,481,506,418.48/225,786.10
  6. Step 6: Final answer
    x = 205,865.23

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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.