Home / 208,628-313,940

Finding the Third Proportional to 208,628 and 313,940

Calculator

Solution

The third proportional to 208,628 and 313,940 is: 472,411.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,628 : 313,940 = 313,940 : x
  2. Step 2: Convert to fraction form
    208,628/313,940 = 313,940/x
  3. Step 3: Cross multiply
    208,628x = 313,940 × 313,940
  4. Step 4: Simplify right side
    208,628x = 98,558,323,600
  5. Step 5: Solve for x
    x = 98,558,323,600/208,628
  6. Step 6: Final answer
    x = 472,411.77

Related Problems

Find third proportional to 104,314 and 156,970
Half scale
Find third proportional to 417,256 and 627,880
Double scale
Find third proportional to 208,630 and 313,943
Similar ratio
Find third proportional to 312,942 and 470,910
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.