Home / 138,414-207,622

Finding the Third Proportional to 138,414 and 207,622

Calculator

Solution

The third proportional to 138,414 and 207,622 is: 311,434.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,414 : 207,622 = 207,622 : x
  2. Step 2: Convert to fraction form
    138,414/207,622 = 207,622/x
  3. Step 3: Cross multiply
    138,414x = 207,622 × 207,622
  4. Step 4: Simplify right side
    138,414x = 43,106,894,884
  5. Step 5: Solve for x
    x = 43,106,894,884/138,414
  6. Step 6: Final answer
    x = 311,434.50

Related Problems

Find third proportional to 69,207 and 103,811
Half scale
Find third proportional to 276,828 and 415,244
Double scale
Find third proportional to 138,416 and 207,625
Similar ratio
Find third proportional to 207,621 and 311,433
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.