Home / 221,808-313,855

Finding the Third Proportional to 221,808 and 313,855

Calculator

Solution

The third proportional to 221,808 and 313,855 is: 444,100.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,808 : 313,855 = 313,855 : x
  2. Step 2: Convert to fraction form
    221,808/313,855 = 313,855/x
  3. Step 3: Cross multiply
    221,808x = 313,855 × 313,855
  4. Step 4: Simplify right side
    221,808x = 98,504,961,025
  5. Step 5: Solve for x
    x = 98,504,961,025/221,808
  6. Step 6: Final answer
    x = 444,100.13

Related Problems

Find third proportional to 110,904 and 156,927.50
Half scale
Find third proportional to 443,616 and 627,710
Double scale
Find third proportional to 221,810 and 313,858
Similar ratio
Find third proportional to 332,712 and 470,782.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.