Home / 255,567-396,845

Finding the Third Proportional to 255,567 and 396,845

Calculator

Solution

The third proportional to 255,567 and 396,845 is: 616,221.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,567 : 396,845 = 396,845 : x
  2. Step 2: Convert to fraction form
    255,567/396,845 = 396,845/x
  3. Step 3: Cross multiply
    255,567x = 396,845 × 396,845
  4. Step 4: Simplify right side
    255,567x = 157,485,954,025
  5. Step 5: Solve for x
    x = 157,485,954,025/255,567
  6. Step 6: Final answer
    x = 616,221.79

Related Problems

Find third proportional to 127,783.50 and 198,422.50
Half scale
Find third proportional to 511,134 and 793,690
Double scale
Find third proportional to 255,569 and 396,848
Similar ratio
Find third proportional to 383,350.50 and 595,267.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.