Home / 138,922-207,798

Finding the Third Proportional to 138,922 and 207,798

Calculator

Solution

The third proportional to 138,922 and 207,798 is: 310,821.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,922 : 207,798 = 207,798 : x
  2. Step 2: Convert to fraction form
    138,922/207,798 = 207,798/x
  3. Step 3: Cross multiply
    138,922x = 207,798 × 207,798
  4. Step 4: Simplify right side
    138,922x = 43,180,008,804
  5. Step 5: Solve for x
    x = 43,180,008,804/138,922
  6. Step 6: Final answer
    x = 310,821.96

Related Problems

Find third proportional to 69,461 and 103,899
Half scale
Find third proportional to 277,844 and 415,596
Double scale
Find third proportional to 138,924 and 207,801
Similar ratio
Find third proportional to 208,383 and 311,697
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.