Home / 120,918-259,332

Finding the Third Proportional to 120,918 and 259,332

Calculator

Solution

The third proportional to 120,918 and 259,332 is: 556,187.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,918 : 259,332 = 259,332 : x
  2. Step 2: Convert to fraction form
    120,918/259,332 = 259,332/x
  3. Step 3: Cross multiply
    120,918x = 259,332 × 259,332
  4. Step 4: Simplify right side
    120,918x = 67,253,086,224
  5. Step 5: Solve for x
    x = 67,253,086,224/120,918
  6. Step 6: Final answer
    x = 556,187.55

Related Problems

Find third proportional to 60,459 and 129,666
Half scale
Find third proportional to 241,836 and 518,664
Double scale
Find third proportional to 120,920 and 259,336
Similar ratio
Find third proportional to 181,377 and 388,998
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.