Home / 156,717-220,209.75

Finding the Third Proportional to 156,717 and 220,209.75

Calculator

Solution

The third proportional to 156,717 and 220,209.75 is: 309,426.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,717 : 220,209.75 = 220,209.75 : x
  2. Step 2: Convert to fraction form
    156,717/220,209.75 = 220,209.75/x
  3. Step 3: Cross multiply
    156,717x = 220,209.75 × 220,209.75
  4. Step 4: Simplify right side
    156,717x = 48,492,333,995.06
  5. Step 5: Solve for x
    x = 48,492,333,995.06/156,717
  6. Step 6: Final answer
    x = 309,426.12

Related Problems

Find third proportional to 78,358.50 and 110,104.88
Half scale
Find third proportional to 313,434 and 440,419.50
Double scale
Find third proportional to 156,719 and 220,213
Similar ratio
Find third proportional to 235,075.50 and 330,314.63
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.