Home / 81,360-181,395

Finding the Third Proportional to 81,360 and 181,395

Calculator

Solution

The third proportional to 81,360 and 181,395 is: 404,426.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,360 : 181,395 = 181,395 : x
  2. Step 2: Convert to fraction form
    81,360/181,395 = 181,395/x
  3. Step 3: Cross multiply
    81,360x = 181,395 × 181,395
  4. Step 4: Simplify right side
    81,360x = 32,904,146,025
  5. Step 5: Solve for x
    x = 32,904,146,025/81,360
  6. Step 6: Final answer
    x = 404,426.57

Related Problems

Find third proportional to 40,680 and 90,697.50
Half scale
Find third proportional to 162,720 and 362,790
Double scale
Find third proportional to 81,362 and 181,399
Similar ratio
Find third proportional to 122,040 and 272,092.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.