Home / 126,200-278,656

Finding the Third Proportional to 126,200 and 278,656

Calculator

Solution

The third proportional to 126,200 and 278,656 is: 615,286.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,200 : 278,656 = 278,656 : x
  2. Step 2: Convert to fraction form
    126,200/278,656 = 278,656/x
  3. Step 3: Cross multiply
    126,200x = 278,656 × 278,656
  4. Step 4: Simplify right side
    126,200x = 77,649,166,336
  5. Step 5: Solve for x
    x = 77,649,166,336/126,200
  6. Step 6: Final answer
    x = 615,286.58

Related Problems

Find third proportional to 63,100 and 139,328
Half scale
Find third proportional to 252,400 and 557,312
Double scale
Find third proportional to 126,202 and 278,660
Similar ratio
Find third proportional to 189,300 and 417,984
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.