Home / 156,381-340,829

Finding the Third Proportional to 156,381 and 340,829

Calculator

Solution

The third proportional to 156,381 and 340,829 is: 742,829.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,381 : 340,829 = 340,829 : x
  2. Step 2: Convert to fraction form
    156,381/340,829 = 340,829/x
  3. Step 3: Cross multiply
    156,381x = 340,829 × 340,829
  4. Step 4: Simplify right side
    156,381x = 116,164,407,241
  5. Step 5: Solve for x
    x = 116,164,407,241/156,381
  6. Step 6: Final answer
    x = 742,829.42

Related Problems

Find third proportional to 78,190.50 and 170,414.50
Half scale
Find third proportional to 312,762 and 681,658
Double scale
Find third proportional to 156,383 and 340,833
Similar ratio
Find third proportional to 234,571.50 and 511,243.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.