Home / 101,979-220,907

Finding the Third Proportional to 101,979 and 220,907

Calculator

Solution

The third proportional to 101,979 and 220,907 is: 478,528.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,979 : 220,907 = 220,907 : x
  2. Step 2: Convert to fraction form
    101,979/220,907 = 220,907/x
  3. Step 3: Cross multiply
    101,979x = 220,907 × 220,907
  4. Step 4: Simplify right side
    101,979x = 48,799,902,649
  5. Step 5: Solve for x
    x = 48,799,902,649/101,979
  6. Step 6: Final answer
    x = 478,528.94

Related Problems

Find third proportional to 50,989.50 and 110,453.50
Half scale
Find third proportional to 203,958 and 441,814
Double scale
Find third proportional to 101,981 and 220,911
Similar ratio
Find third proportional to 152,968.50 and 331,360.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.