Home / 136,436-278,418

Finding the Third Proportional to 136,436 and 278,418

Calculator

Solution

The third proportional to 136,436 and 278,418 is: 568,153.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,436 : 278,418 = 278,418 : x
  2. Step 2: Convert to fraction form
    136,436/278,418 = 278,418/x
  3. Step 3: Cross multiply
    136,436x = 278,418 × 278,418
  4. Step 4: Simplify right side
    136,436x = 77,516,582,724
  5. Step 5: Solve for x
    x = 77,516,582,724/136,436
  6. Step 6: Final answer
    x = 568,153.44

Related Problems

Find third proportional to 68,218 and 139,209
Half scale
Find third proportional to 272,872 and 556,836
Double scale
Find third proportional to 136,438 and 278,422
Similar ratio
Find third proportional to 204,654 and 417,627
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.