Home / 181,138-397,268

Finding the Third Proportional to 181,138 and 397,268

Calculator

Solution

The third proportional to 181,138 and 397,268 is: 871,279.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,138 : 397,268 = 397,268 : x
  2. Step 2: Convert to fraction form
    181,138/397,268 = 397,268/x
  3. Step 3: Cross multiply
    181,138x = 397,268 × 397,268
  4. Step 4: Simplify right side
    181,138x = 157,821,863,824
  5. Step 5: Solve for x
    x = 157,821,863,824/181,138
  6. Step 6: Final answer
    x = 871,279.71

Related Problems

Find third proportional to 90,569 and 198,634
Half scale
Find third proportional to 362,276 and 794,536
Double scale
Find third proportional to 181,140 and 397,272
Similar ratio
Find third proportional to 271,707 and 595,902
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.