Home / 138,168-207,360

Finding the Third Proportional to 138,168 and 207,360

Calculator

Solution

The third proportional to 138,168 and 207,360 is: 311,202.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,168 : 207,360 = 207,360 : x
  2. Step 2: Convert to fraction form
    138,168/207,360 = 207,360/x
  3. Step 3: Cross multiply
    138,168x = 207,360 × 207,360
  4. Step 4: Simplify right side
    138,168x = 42,998,169,600
  5. Step 5: Solve for x
    x = 42,998,169,600/138,168
  6. Step 6: Final answer
    x = 311,202.08

Related Problems

Find third proportional to 69,084 and 103,680
Half scale
Find third proportional to 276,336 and 414,720
Double scale
Find third proportional to 138,170 and 207,363
Similar ratio
Find third proportional to 207,252 and 311,040
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.