Home / 196,720-422,109

Finding the Third Proportional to 196,720 and 422,109

Calculator

Solution

The third proportional to 196,720 and 422,109 is: 905,734.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,720 : 422,109 = 422,109 : x
  2. Step 2: Convert to fraction form
    196,720/422,109 = 422,109/x
  3. Step 3: Cross multiply
    196,720x = 422,109 × 422,109
  4. Step 4: Simplify right side
    196,720x = 178,176,007,881
  5. Step 5: Solve for x
    x = 178,176,007,881/196,720
  6. Step 6: Final answer
    x = 905,734.08

Related Problems

Find third proportional to 98,360 and 211,054.50
Half scale
Find third proportional to 393,440 and 844,218
Double scale
Find third proportional to 196,722 and 422,113
Similar ratio
Find third proportional to 295,080 and 633,163.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.