Home / 40,286-87,268

Finding the Third Proportional to 40,286 and 87,268

Calculator

Solution

The third proportional to 40,286 and 87,268 is: 189,040.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,286 : 87,268 = 87,268 : x
  2. Step 2: Convert to fraction form
    40,286/87,268 = 87,268/x
  3. Step 3: Cross multiply
    40,286x = 87,268 × 87,268
  4. Step 4: Simplify right side
    40,286x = 7,615,703,824
  5. Step 5: Solve for x
    x = 7,615,703,824/40,286
  6. Step 6: Final answer
    x = 189,040.95

Related Problems

Find third proportional to 20,143 and 43,634
Half scale
Find third proportional to 80,572 and 174,536
Double scale
Find third proportional to 40,288 and 87,272
Similar ratio
Find third proportional to 60,429 and 130,902
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.