Home / 129,274-198,636

Finding the Third Proportional to 129,274 and 198,636

Calculator

Solution

The third proportional to 129,274 and 198,636 is: 305,214.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,274 : 198,636 = 198,636 : x
  2. Step 2: Convert to fraction form
    129,274/198,636 = 198,636/x
  3. Step 3: Cross multiply
    129,274x = 198,636 × 198,636
  4. Step 4: Simplify right side
    129,274x = 39,456,260,496
  5. Step 5: Solve for x
    x = 39,456,260,496/129,274
  6. Step 6: Final answer
    x = 305,214.20

Related Problems

Find third proportional to 64,637 and 99,318
Half scale
Find third proportional to 258,548 and 397,272
Double scale
Find third proportional to 129,276 and 198,639
Similar ratio
Find third proportional to 193,911 and 297,954
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.