Home / 255,563-400,925

Finding the Third Proportional to 255,563 and 400,925

Calculator

Solution

The third proportional to 255,563 and 400,925 is: 628,967.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,563 : 400,925 = 400,925 : x
  2. Step 2: Convert to fraction form
    255,563/400,925 = 400,925/x
  3. Step 3: Cross multiply
    255,563x = 400,925 × 400,925
  4. Step 4: Simplify right side
    255,563x = 160,740,855,625
  5. Step 5: Solve for x
    x = 160,740,855,625/255,563
  6. Step 6: Final answer
    x = 628,967.63

Related Problems

Find third proportional to 127,781.50 and 200,462.50
Half scale
Find third proportional to 511,126 and 801,850
Double scale
Find third proportional to 255,565 and 400,928
Similar ratio
Find third proportional to 383,344.50 and 601,387.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.