Home / 57,460-121,878

Finding the Third Proportional to 57,460 and 121,878

Calculator

Solution

The third proportional to 57,460 and 121,878 is: 258,514.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,460 : 121,878 = 121,878 : x
  2. Step 2: Convert to fraction form
    57,460/121,878 = 121,878/x
  3. Step 3: Cross multiply
    57,460x = 121,878 × 121,878
  4. Step 4: Simplify right side
    57,460x = 14,854,246,884
  5. Step 5: Solve for x
    x = 14,854,246,884/57,460
  6. Step 6: Final answer
    x = 258,514.56

Related Problems

Find third proportional to 28,730 and 60,939
Half scale
Find third proportional to 114,920 and 243,756
Double scale
Find third proportional to 57,462 and 121,882
Similar ratio
Find third proportional to 86,190 and 182,817
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.