Home / 144,993-318,355

Finding the Third Proportional to 144,993 and 318,355

Calculator

Solution

The third proportional to 144,993 and 318,355 is: 698,998.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,993 : 318,355 = 318,355 : x
  2. Step 2: Convert to fraction form
    144,993/318,355 = 318,355/x
  3. Step 3: Cross multiply
    144,993x = 318,355 × 318,355
  4. Step 4: Simplify right side
    144,993x = 101,349,906,025
  5. Step 5: Solve for x
    x = 101,349,906,025/144,993
  6. Step 6: Final answer
    x = 698,998.61

Related Problems

Find third proportional to 72,496.50 and 159,177.50
Half scale
Find third proportional to 289,986 and 636,710
Double scale
Find third proportional to 144,995 and 318,359
Similar ratio
Find third proportional to 217,489.50 and 477,532.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.