Home / 90,109-198,204

Finding the Third Proportional to 90,109 and 198,204

Calculator

Solution

The third proportional to 90,109 and 198,204 is: 435,970.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,109 : 198,204 = 198,204 : x
  2. Step 2: Convert to fraction form
    90,109/198,204 = 198,204/x
  3. Step 3: Cross multiply
    90,109x = 198,204 × 198,204
  4. Step 4: Simplify right side
    90,109x = 39,284,825,616
  5. Step 5: Solve for x
    x = 39,284,825,616/90,109
  6. Step 6: Final answer
    x = 435,970.05

Related Problems

Find third proportional to 45,054.50 and 99,102
Half scale
Find third proportional to 180,218 and 396,408
Double scale
Find third proportional to 90,111 and 198,208
Similar ratio
Find third proportional to 135,163.50 and 297,306
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.