Home / 120,330-180,495

Finding the Third Proportional to 120,330 and 180,495

Calculator

Solution

The third proportional to 120,330 and 180,495 is: 270,742.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,330 : 180,495 = 180,495 : x
  2. Step 2: Convert to fraction form
    120,330/180,495 = 180,495/x
  3. Step 3: Cross multiply
    120,330x = 180,495 × 180,495
  4. Step 4: Simplify right side
    120,330x = 32,578,445,025
  5. Step 5: Solve for x
    x = 32,578,445,025/120,330
  6. Step 6: Final answer
    x = 270,742.50

Related Problems

Find third proportional to 60,165 and 90,247.50
Half scale
Find third proportional to 240,660 and 360,990
Double scale
Find third proportional to 120,332 and 180,498
Similar ratio
Find third proportional to 180,495 and 270,742.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.