Home / 138,492-207,900

Finding the Third Proportional to 138,492 and 207,900

Calculator

Solution

The third proportional to 138,492 and 207,900 is: 312,093.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,492 : 207,900 = 207,900 : x
  2. Step 2: Convert to fraction form
    138,492/207,900 = 207,900/x
  3. Step 3: Cross multiply
    138,492x = 207,900 × 207,900
  4. Step 4: Simplify right side
    138,492x = 43,222,410,000
  5. Step 5: Solve for x
    x = 43,222,410,000/138,492
  6. Step 6: Final answer
    x = 312,093.19

Related Problems

Find third proportional to 69,246 and 103,950
Half scale
Find third proportional to 276,984 and 415,800
Double scale
Find third proportional to 138,494 and 207,903
Similar ratio
Find third proportional to 207,738 and 311,850
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.