Home / 138,686-296,974

Finding the Third Proportional to 138,686 and 296,974

Calculator

Solution

The third proportional to 138,686 and 296,974 is: 635,922.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,686 : 296,974 = 296,974 : x
  2. Step 2: Convert to fraction form
    138,686/296,974 = 296,974/x
  3. Step 3: Cross multiply
    138,686x = 296,974 × 296,974
  4. Step 4: Simplify right side
    138,686x = 88,193,556,676
  5. Step 5: Solve for x
    x = 88,193,556,676/138,686
  6. Step 6: Final answer
    x = 635,922.56

Related Problems

Find third proportional to 69,343 and 148,487
Half scale
Find third proportional to 277,372 and 593,948
Double scale
Find third proportional to 138,688 and 296,978
Similar ratio
Find third proportional to 208,029 and 445,461
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.