Home / 144,628-313,859

Finding the Third Proportional to 144,628 and 313,859

Calculator

Solution

The third proportional to 144,628 and 313,859 is: 681,109.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,628 : 313,859 = 313,859 : x
  2. Step 2: Convert to fraction form
    144,628/313,859 = 313,859/x
  3. Step 3: Cross multiply
    144,628x = 313,859 × 313,859
  4. Step 4: Simplify right side
    144,628x = 98,507,471,881
  5. Step 5: Solve for x
    x = 98,507,471,881/144,628
  6. Step 6: Final answer
    x = 681,109.27

Related Problems

Find third proportional to 72,314 and 156,929.50
Half scale
Find third proportional to 289,256 and 627,718
Double scale
Find third proportional to 144,630 and 313,863
Similar ratio
Find third proportional to 216,942 and 470,788.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.