Home / 125,211-278,418

Finding the Third Proportional to 125,211 and 278,418

Calculator

Solution

The third proportional to 125,211 and 278,418 is: 619,087.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,211 : 278,418 = 278,418 : x
  2. Step 2: Convert to fraction form
    125,211/278,418 = 278,418/x
  3. Step 3: Cross multiply
    125,211x = 278,418 × 278,418
  4. Step 4: Simplify right side
    125,211x = 77,516,582,724
  5. Step 5: Solve for x
    x = 77,516,582,724/125,211
  6. Step 6: Final answer
    x = 619,087.64

Related Problems

Find third proportional to 62,605.50 and 139,209
Half scale
Find third proportional to 250,422 and 556,836
Double scale
Find third proportional to 125,213 and 278,422
Similar ratio
Find third proportional to 187,816.50 and 417,627
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.