Home / 126,864-261,408

Finding the Third Proportional to 126,864 and 261,408

Calculator

Solution

The third proportional to 126,864 and 261,408 is: 538,640.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,864 : 261,408 = 261,408 : x
  2. Step 2: Convert to fraction form
    126,864/261,408 = 261,408/x
  3. Step 3: Cross multiply
    126,864x = 261,408 × 261,408
  4. Step 4: Simplify right side
    126,864x = 68,334,142,464
  5. Step 5: Solve for x
    x = 68,334,142,464/126,864
  6. Step 6: Final answer
    x = 538,640.93

Related Problems

Find third proportional to 63,432 and 130,704
Half scale
Find third proportional to 253,728 and 522,816
Double scale
Find third proportional to 126,866 and 261,412
Similar ratio
Find third proportional to 190,296 and 392,112
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.