Home / 198,864-387,648

Finding the Third Proportional to 198,864 and 387,648

Calculator

Solution

The third proportional to 198,864 and 387,648 is: 755,646.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,864 : 387,648 = 387,648 : x
  2. Step 2: Convert to fraction form
    198,864/387,648 = 387,648/x
  3. Step 3: Cross multiply
    198,864x = 387,648 × 387,648
  4. Step 4: Simplify right side
    198,864x = 150,270,971,904
  5. Step 5: Solve for x
    x = 150,270,971,904/198,864
  6. Step 6: Final answer
    x = 755,646.93

Related Problems

Find third proportional to 99,432 and 193,824
Half scale
Find third proportional to 397,728 and 775,296
Double scale
Find third proportional to 198,866 and 387,652
Similar ratio
Find third proportional to 298,296 and 581,472
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.