Home / 136,656-296,640

Finding the Third Proportional to 136,656 and 296,640

Calculator

Solution

The third proportional to 136,656 and 296,640 is: 643,918.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,656 : 296,640 = 296,640 : x
  2. Step 2: Convert to fraction form
    136,656/296,640 = 296,640/x
  3. Step 3: Cross multiply
    136,656x = 296,640 × 296,640
  4. Step 4: Simplify right side
    136,656x = 87,995,289,600
  5. Step 5: Solve for x
    x = 87,995,289,600/136,656
  6. Step 6: Final answer
    x = 643,918.23

Related Problems

Find third proportional to 68,328 and 148,320
Half scale
Find third proportional to 273,312 and 593,280
Double scale
Find third proportional to 136,658 and 296,644
Similar ratio
Find third proportional to 204,984 and 444,960
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.