Home / 99,756-214,128

Finding the Third Proportional to 99,756 and 214,128

Calculator

Solution

The third proportional to 99,756 and 214,128 is: 459,629.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,756 : 214,128 = 214,128 : x
  2. Step 2: Convert to fraction form
    99,756/214,128 = 214,128/x
  3. Step 3: Cross multiply
    99,756x = 214,128 × 214,128
  4. Step 4: Simplify right side
    99,756x = 45,850,800,384
  5. Step 5: Solve for x
    x = 45,850,800,384/99,756
  6. Step 6: Final answer
    x = 459,629.50

Related Problems

Find third proportional to 49,878 and 107,064
Half scale
Find third proportional to 199,512 and 428,256
Double scale
Find third proportional to 99,758 and 214,132
Similar ratio
Find third proportional to 149,634 and 321,192
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.