Home / 121,728-262,896

Finding the Third Proportional to 121,728 and 262,896

Calculator

Solution

The third proportional to 121,728 and 262,896 is: 567,776.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,728 : 262,896 = 262,896 : x
  2. Step 2: Convert to fraction form
    121,728/262,896 = 262,896/x
  3. Step 3: Cross multiply
    121,728x = 262,896 × 262,896
  4. Step 4: Simplify right side
    121,728x = 69,114,306,816
  5. Step 5: Solve for x
    x = 69,114,306,816/121,728
  6. Step 6: Final answer
    x = 567,776.57

Related Problems

Find third proportional to 60,864 and 131,448
Half scale
Find third proportional to 243,456 and 525,792
Double scale
Find third proportional to 121,730 and 262,900
Similar ratio
Find third proportional to 182,592 and 394,344
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.