Home / 87,709-189,449

Finding the Third Proportional to 87,709 and 189,449

Calculator

Solution

The third proportional to 87,709 and 189,449 is: 409,204.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,709 : 189,449 = 189,449 : x
  2. Step 2: Convert to fraction form
    87,709/189,449 = 189,449/x
  3. Step 3: Cross multiply
    87,709x = 189,449 × 189,449
  4. Step 4: Simplify right side
    87,709x = 35,890,923,601
  5. Step 5: Solve for x
    x = 35,890,923,601/87,709
  6. Step 6: Final answer
    x = 409,204.57

Related Problems

Find third proportional to 43,854.50 and 94,724.50
Half scale
Find third proportional to 175,418 and 378,898
Double scale
Find third proportional to 87,711 and 189,453
Similar ratio
Find third proportional to 131,563.50 and 284,173.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.