Home / 135,981-288,170

Finding the Third Proportional to 135,981 and 288,170

Calculator

Solution

The third proportional to 135,981 and 288,170 is: 610,687.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,981 : 288,170 = 288,170 : x
  2. Step 2: Convert to fraction form
    135,981/288,170 = 288,170/x
  3. Step 3: Cross multiply
    135,981x = 288,170 × 288,170
  4. Step 4: Simplify right side
    135,981x = 83,041,948,900
  5. Step 5: Solve for x
    x = 83,041,948,900/135,981
  6. Step 6: Final answer
    x = 610,687.88

Related Problems

Find third proportional to 67,990.50 and 144,085
Half scale
Find third proportional to 271,962 and 576,340
Double scale
Find third proportional to 135,983 and 288,174
Similar ratio
Find third proportional to 203,971.50 and 432,255
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.