Home / 69,449-143,812

Finding the Third Proportional to 69,449 and 143,812

Calculator

Solution

The third proportional to 69,449 and 143,812 is: 297,799.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,449 : 143,812 = 143,812 : x
  2. Step 2: Convert to fraction form
    69,449/143,812 = 143,812/x
  3. Step 3: Cross multiply
    69,449x = 143,812 × 143,812
  4. Step 4: Simplify right side
    69,449x = 20,681,891,344
  5. Step 5: Solve for x
    x = 20,681,891,344/69,449
  6. Step 6: Final answer
    x = 297,799.70

Related Problems

Find third proportional to 34,724.50 and 71,906
Half scale
Find third proportional to 138,898 and 287,624
Double scale
Find third proportional to 69,451 and 143,816
Similar ratio
Find third proportional to 104,173.50 and 215,718
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.