Home / 137,862-221,190

Finding the Third Proportional to 137,862 and 221,190

Calculator

Solution

The third proportional to 137,862 and 221,190 is: 354,883.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,862 : 221,190 = 221,190 : x
  2. Step 2: Convert to fraction form
    137,862/221,190 = 221,190/x
  3. Step 3: Cross multiply
    137,862x = 221,190 × 221,190
  4. Step 4: Simplify right side
    137,862x = 48,925,016,100
  5. Step 5: Solve for x
    x = 48,925,016,100/137,862
  6. Step 6: Final answer
    x = 354,883.99

Related Problems

Find third proportional to 68,931 and 110,595
Half scale
Find third proportional to 275,724 and 442,380
Double scale
Find third proportional to 137,864 and 221,193
Similar ratio
Find third proportional to 206,793 and 331,785
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.