Home / 126,270-278,784

Finding the Third Proportional to 126,270 and 278,784

Calculator

Solution

The third proportional to 126,270 and 278,784 is: 615,510.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,270 : 278,784 = 278,784 : x
  2. Step 2: Convert to fraction form
    126,270/278,784 = 278,784/x
  3. Step 3: Cross multiply
    126,270x = 278,784 × 278,784
  4. Step 4: Simplify right side
    126,270x = 77,720,518,656
  5. Step 5: Solve for x
    x = 77,720,518,656/126,270
  6. Step 6: Final answer
    x = 615,510.56

Related Problems

Find third proportional to 63,135 and 139,392
Half scale
Find third proportional to 252,540 and 557,568
Double scale
Find third proportional to 126,272 and 278,788
Similar ratio
Find third proportional to 189,405 and 418,176
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.