Home / 90,504-198,720

Finding the Third Proportional to 90,504 and 198,720

Calculator

Solution

The third proportional to 90,504 and 198,720 is: 436,330.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,504 : 198,720 = 198,720 : x
  2. Step 2: Convert to fraction form
    90,504/198,720 = 198,720/x
  3. Step 3: Cross multiply
    90,504x = 198,720 × 198,720
  4. Step 4: Simplify right side
    90,504x = 39,489,638,400
  5. Step 5: Solve for x
    x = 39,489,638,400/90,504
  6. Step 6: Final answer
    x = 436,330.31

Related Problems

Find third proportional to 45,252 and 99,360
Half scale
Find third proportional to 181,008 and 397,440
Double scale
Find third proportional to 90,506 and 198,724
Similar ratio
Find third proportional to 135,756 and 298,080
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.