Home / 208,968-318,348

Finding the Third Proportional to 208,968 and 318,348

Calculator

Solution

The third proportional to 208,968 and 318,348 is: 484,980.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,968 : 318,348 = 318,348 : x
  2. Step 2: Convert to fraction form
    208,968/318,348 = 318,348/x
  3. Step 3: Cross multiply
    208,968x = 318,348 × 318,348
  4. Step 4: Simplify right side
    208,968x = 101,345,449,104
  5. Step 5: Solve for x
    x = 101,345,449,104/208,968
  6. Step 6: Final answer
    x = 484,980.71

Related Problems

Find third proportional to 104,484 and 159,174
Half scale
Find third proportional to 417,936 and 636,696
Double scale
Find third proportional to 208,970 and 318,351
Similar ratio
Find third proportional to 313,452 and 477,522
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.