Home / 136,800-218,544

Finding the Third Proportional to 136,800 and 218,544

Calculator

Solution

The third proportional to 136,800 and 218,544 is: 349,133.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,800 : 218,544 = 218,544 : x
  2. Step 2: Convert to fraction form
    136,800/218,544 = 218,544/x
  3. Step 3: Cross multiply
    136,800x = 218,544 × 218,544
  4. Step 4: Simplify right side
    136,800x = 47,761,479,936
  5. Step 5: Solve for x
    x = 47,761,479,936/136,800
  6. Step 6: Final answer
    x = 349,133.63

Related Problems

Find third proportional to 68,400 and 109,272
Half scale
Find third proportional to 273,600 and 437,088
Double scale
Find third proportional to 136,802 and 218,547
Similar ratio
Find third proportional to 205,200 and 327,816
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.