Home / 135,981-298,880

Finding the Third Proportional to 135,981 and 298,880

Calculator

Solution

The third proportional to 135,981 and 298,880 is: 656,924.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,981 : 298,880 = 298,880 : x
  2. Step 2: Convert to fraction form
    135,981/298,880 = 298,880/x
  3. Step 3: Cross multiply
    135,981x = 298,880 × 298,880
  4. Step 4: Simplify right side
    135,981x = 89,329,254,400
  5. Step 5: Solve for x
    x = 89,329,254,400/135,981
  6. Step 6: Final answer
    x = 656,924.53

Related Problems

Find third proportional to 67,990.50 and 149,440
Half scale
Find third proportional to 271,962 and 597,760
Double scale
Find third proportional to 135,983 and 298,884
Similar ratio
Find third proportional to 203,971.50 and 448,320
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.