Home / 155,600-220,188

Finding the Third Proportional to 155,600 and 220,188

Calculator

Solution

The third proportional to 155,600 and 220,188 is: 311,585.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,600 : 220,188 = 220,188 : x
  2. Step 2: Convert to fraction form
    155,600/220,188 = 220,188/x
  3. Step 3: Cross multiply
    155,600x = 220,188 × 220,188
  4. Step 4: Simplify right side
    155,600x = 48,482,755,344
  5. Step 5: Solve for x
    x = 48,482,755,344/155,600
  6. Step 6: Final answer
    x = 311,585.83

Related Problems

Find third proportional to 77,800 and 110,094
Half scale
Find third proportional to 311,200 and 440,376
Double scale
Find third proportional to 155,602 and 220,191
Similar ratio
Find third proportional to 233,400 and 330,282
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.