Home / 135,679-298,423

Finding the Third Proportional to 135,679 and 298,423

Calculator

Solution

The third proportional to 135,679 and 298,423 is: 656,374.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,679 : 298,423 = 298,423 : x
  2. Step 2: Convert to fraction form
    135,679/298,423 = 298,423/x
  3. Step 3: Cross multiply
    135,679x = 298,423 × 298,423
  4. Step 4: Simplify right side
    135,679x = 89,056,286,929
  5. Step 5: Solve for x
    x = 89,056,286,929/135,679
  6. Step 6: Final answer
    x = 656,374.88

Related Problems

Find third proportional to 67,839.50 and 149,211.50
Half scale
Find third proportional to 271,358 and 596,846
Double scale
Find third proportional to 135,681 and 298,427
Similar ratio
Find third proportional to 203,518.50 and 447,634.50
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.