Home / 142,279-214,357

Finding the Third Proportional to 142,279 and 214,357

Calculator

Solution

The third proportional to 142,279 and 214,357 is: 322,949.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,279 : 214,357 = 214,357 : x
  2. Step 2: Convert to fraction form
    142,279/214,357 = 214,357/x
  3. Step 3: Cross multiply
    142,279x = 214,357 × 214,357
  4. Step 4: Simplify right side
    142,279x = 45,948,923,449
  5. Step 5: Solve for x
    x = 45,948,923,449/142,279
  6. Step 6: Final answer
    x = 322,949.44

Related Problems

Find third proportional to 71,139.50 and 107,178.50
Half scale
Find third proportional to 284,558 and 428,714
Double scale
Find third proportional to 142,281 and 214,360
Similar ratio
Find third proportional to 213,418.50 and 321,535.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.