Home / 120,647-255,874

Finding the Third Proportional to 120,647 and 255,874

Calculator

Solution

The third proportional to 120,647 and 255,874 is: 542,669.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,647 : 255,874 = 255,874 : x
  2. Step 2: Convert to fraction form
    120,647/255,874 = 255,874/x
  3. Step 3: Cross multiply
    120,647x = 255,874 × 255,874
  4. Step 4: Simplify right side
    120,647x = 65,471,503,876
  5. Step 5: Solve for x
    x = 65,471,503,876/120,647
  6. Step 6: Final answer
    x = 542,669.97

Related Problems

Find third proportional to 60,323.50 and 127,937
Half scale
Find third proportional to 241,294 and 511,748
Double scale
Find third proportional to 120,649 and 255,878
Similar ratio
Find third proportional to 180,970.50 and 383,811
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.