Home / 135,219.75-289,200

Finding the Third Proportional to 135,219.75 and 289,200

Calculator

Solution

The third proportional to 135,219.75 and 289,200 is: 618,523.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,219.75 : 289,200 = 289,200 : x
  2. Step 2: Convert to fraction form
    135,219.75/289,200 = 289,200/x
  3. Step 3: Cross multiply
    135,219.75x = 289,200 × 289,200
  4. Step 4: Simplify right side
    135,219.75x = 83,636,640,000
  5. Step 5: Solve for x
    x = 83,636,640,000/135,219.75
  6. Step 6: Final answer
    x = 618,523.85

Related Problems

Find third proportional to 67,609.88 and 144,600
Half scale
Find third proportional to 270,439.50 and 578,400
Double scale
Find third proportional to 135,222 and 289,204
Similar ratio
Find third proportional to 202,829.63 and 433,800
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.