Home / 38,619-90,220

Finding the Third Proportional to 38,619 and 90,220

Calculator

Solution

The third proportional to 38,619 and 90,220 is: 210,767.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,619 : 90,220 = 90,220 : x
  2. Step 2: Convert to fraction form
    38,619/90,220 = 90,220/x
  3. Step 3: Cross multiply
    38,619x = 90,220 × 90,220
  4. Step 4: Simplify right side
    38,619x = 8,139,648,400
  5. Step 5: Solve for x
    x = 8,139,648,400/38,619
  6. Step 6: Final answer
    x = 210,767.97

Related Problems

Find third proportional to 19,309.50 and 45,110
Half scale
Find third proportional to 77,238 and 180,440
Double scale
Find third proportional to 38,621 and 90,225
Similar ratio
Find third proportional to 57,928.50 and 135,330
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.