Home / 157,660-338,648

Finding the Third Proportional to 157,660 and 338,648

Calculator

Solution

The third proportional to 157,660 and 338,648 is: 727,403.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,660 : 338,648 = 338,648 : x
  2. Step 2: Convert to fraction form
    157,660/338,648 = 338,648/x
  3. Step 3: Cross multiply
    157,660x = 338,648 × 338,648
  4. Step 4: Simplify right side
    157,660x = 114,682,467,904
  5. Step 5: Solve for x
    x = 114,682,467,904/157,660
  6. Step 6: Final answer
    x = 727,403.70

Related Problems

Find third proportional to 78,830 and 169,324
Half scale
Find third proportional to 315,320 and 677,296
Double scale
Find third proportional to 157,662 and 338,652
Similar ratio
Find third proportional to 236,490 and 507,972
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.