Home / 423,974.40-635,767.20-187,195.20

Finding the Fourth Proportional to 423,974.40, 635,767.20 and 187,195.20

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Solution

The fourth proportional to 423,974.40, 635,767.20 and 187,195.20 is: 280,706.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,974.40 : 635,767.20 = 187,195.20 : x
  2. Step 2: Convert to fraction form
    423,974.40/635,767.20 = 187,195.20/x
  3. Step 3: Cross multiply
    423,974.40x = 635,767.20 × 187,195.20
  4. Step 4: Simplify right side
    423,974.40x = 119,012,568,157.44
  5. Step 5: Solve for x
    x = 119,012,568,157.44/423,974.40
  6. Step 6: Final answer
    x = 280,706.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.