Home / 138,200-220,012

Finding the Third Proportional to 138,200 and 220,012

Calculator

Solution

The third proportional to 138,200 and 220,012 is: 350,255.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,200 : 220,012 = 220,012 : x
  2. Step 2: Convert to fraction form
    138,200/220,012 = 220,012/x
  3. Step 3: Cross multiply
    138,200x = 220,012 × 220,012
  4. Step 4: Simplify right side
    138,200x = 48,405,280,144
  5. Step 5: Solve for x
    x = 48,405,280,144/138,200
  6. Step 6: Final answer
    x = 350,255.28

Related Problems

Find third proportional to 69,100 and 110,006
Half scale
Find third proportional to 276,400 and 440,024
Double scale
Find third proportional to 138,202 and 220,015
Similar ratio
Find third proportional to 207,300 and 330,018
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.