Home / 135,760-298,286

Finding the Third Proportional to 135,760 and 298,286

Calculator

Solution

The third proportional to 135,760 and 298,286 is: 655,381.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,760 : 298,286 = 298,286 : x
  2. Step 2: Convert to fraction form
    135,760/298,286 = 298,286/x
  3. Step 3: Cross multiply
    135,760x = 298,286 × 298,286
  4. Step 4: Simplify right side
    135,760x = 88,974,537,796
  5. Step 5: Solve for x
    x = 88,974,537,796/135,760
  6. Step 6: Final answer
    x = 655,381.10

Related Problems

Find third proportional to 67,880 and 149,143
Half scale
Find third proportional to 271,520 and 596,572
Double scale
Find third proportional to 135,762 and 298,290
Similar ratio
Find third proportional to 203,640 and 447,429
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.