Home / 138,728-327,280

Finding the Third Proportional to 138,728 and 327,280

Calculator

Solution

The third proportional to 138,728 and 327,280 is: 772,102.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,728 : 327,280 = 327,280 : x
  2. Step 2: Convert to fraction form
    138,728/327,280 = 327,280/x
  3. Step 3: Cross multiply
    138,728x = 327,280 × 327,280
  4. Step 4: Simplify right side
    138,728x = 107,112,198,400
  5. Step 5: Solve for x
    x = 107,112,198,400/138,728
  6. Step 6: Final answer
    x = 772,102.23

Related Problems

Find third proportional to 69,364 and 163,640
Half scale
Find third proportional to 277,456 and 654,560
Double scale
Find third proportional to 138,730 and 327,285
Similar ratio
Find third proportional to 208,092 and 490,920
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.