Home / 101,988-220,920

Finding the Third Proportional to 101,988 and 220,920

Calculator

Solution

The third proportional to 101,988 and 220,920 is: 478,543.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,988 : 220,920 = 220,920 : x
  2. Step 2: Convert to fraction form
    101,988/220,920 = 220,920/x
  3. Step 3: Cross multiply
    101,988x = 220,920 × 220,920
  4. Step 4: Simplify right side
    101,988x = 48,805,646,400
  5. Step 5: Solve for x
    x = 48,805,646,400/101,988
  6. Step 6: Final answer
    x = 478,543.03

Related Problems

Find third proportional to 50,994 and 110,460
Half scale
Find third proportional to 203,976 and 441,840
Double scale
Find third proportional to 101,990 and 220,924
Similar ratio
Find third proportional to 152,982 and 331,380
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.