Home / 144,430-315,104

Finding the Third Proportional to 144,430 and 315,104

Calculator

Solution

The third proportional to 144,430 and 315,104 is: 687,464.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,430 : 315,104 = 315,104 : x
  2. Step 2: Convert to fraction form
    144,430/315,104 = 315,104/x
  3. Step 3: Cross multiply
    144,430x = 315,104 × 315,104
  4. Step 4: Simplify right side
    144,430x = 99,290,530,816
  5. Step 5: Solve for x
    x = 99,290,530,816/144,430
  6. Step 6: Final answer
    x = 687,464.73

Related Problems

Find third proportional to 72,215 and 157,552
Half scale
Find third proportional to 288,860 and 630,208
Double scale
Find third proportional to 144,432 and 315,108
Similar ratio
Find third proportional to 216,645 and 472,656
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.