Home / 203,918-422,172

Finding the Third Proportional to 203,918 and 422,172

Calculator

Solution

The third proportional to 203,918 and 422,172 is: 874,023.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,918 : 422,172 = 422,172 : x
  2. Step 2: Convert to fraction form
    203,918/422,172 = 422,172/x
  3. Step 3: Cross multiply
    203,918x = 422,172 × 422,172
  4. Step 4: Simplify right side
    203,918x = 178,229,197,584
  5. Step 5: Solve for x
    x = 178,229,197,584/203,918
  6. Step 6: Final answer
    x = 874,023.86

Related Problems

Find third proportional to 101,959 and 211,086
Half scale
Find third proportional to 407,836 and 844,344
Double scale
Find third proportional to 203,920 and 422,176
Similar ratio
Find third proportional to 305,877 and 633,258
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.