Home / 156,942-221,104

Finding the Third Proportional to 156,942 and 221,104

Calculator

Solution

The third proportional to 156,942 and 221,104 is: 311,497.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,942 : 221,104 = 221,104 : x
  2. Step 2: Convert to fraction form
    156,942/221,104 = 221,104/x
  3. Step 3: Cross multiply
    156,942x = 221,104 × 221,104
  4. Step 4: Simplify right side
    156,942x = 48,886,978,816
  5. Step 5: Solve for x
    x = 48,886,978,816/156,942
  6. Step 6: Final answer
    x = 311,497.11

Related Problems

Find third proportional to 78,471 and 110,552
Half scale
Find third proportional to 313,884 and 442,208
Double scale
Find third proportional to 156,944 and 221,107
Similar ratio
Find third proportional to 235,413 and 331,656
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.