Home / 206,930-422,608

Finding the Third Proportional to 206,930 and 422,608

Calculator

Solution

The third proportional to 206,930 and 422,608 is: 863,081.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,930 : 422,608 = 422,608 : x
  2. Step 2: Convert to fraction form
    206,930/422,608 = 422,608/x
  3. Step 3: Cross multiply
    206,930x = 422,608 × 422,608
  4. Step 4: Simplify right side
    206,930x = 178,597,521,664
  5. Step 5: Solve for x
    x = 178,597,521,664/206,930
  6. Step 6: Final answer
    x = 863,081.82

Related Problems

Find third proportional to 103,465 and 211,304
Half scale
Find third proportional to 413,860 and 845,216
Double scale
Find third proportional to 206,932 and 422,612
Similar ratio
Find third proportional to 310,395 and 633,912
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.