Home / 131,718-198,738

Finding the Third Proportional to 131,718 and 198,738

Calculator

Solution

The third proportional to 131,718 and 198,738 is: 299,858.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,718 : 198,738 = 198,738 : x
  2. Step 2: Convert to fraction form
    131,718/198,738 = 198,738/x
  3. Step 3: Cross multiply
    131,718x = 198,738 × 198,738
  4. Step 4: Simplify right side
    131,718x = 39,496,792,644
  5. Step 5: Solve for x
    x = 39,496,792,644/131,718
  6. Step 6: Final answer
    x = 299,858.73

Related Problems

Find third proportional to 65,859 and 99,369
Half scale
Find third proportional to 263,436 and 397,476
Double scale
Find third proportional to 131,720 and 198,741
Similar ratio
Find third proportional to 197,577 and 298,107
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.