Home / 91,687-198,818

Finding the Third Proportional to 91,687 and 198,818

Calculator

Solution

The third proportional to 91,687 and 198,818 is: 431,125.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,687 : 198,818 = 198,818 : x
  2. Step 2: Convert to fraction form
    91,687/198,818 = 198,818/x
  3. Step 3: Cross multiply
    91,687x = 198,818 × 198,818
  4. Step 4: Simplify right side
    91,687x = 39,528,597,124
  5. Step 5: Solve for x
    x = 39,528,597,124/91,687
  6. Step 6: Final answer
    x = 431,125.43

Related Problems

Find third proportional to 45,843.50 and 99,409
Half scale
Find third proportional to 183,374 and 397,636
Double scale
Find third proportional to 91,689 and 198,822
Similar ratio
Find third proportional to 137,530.50 and 298,227
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.