Home / 141,518-309,278

Finding the Third Proportional to 141,518 and 309,278

Calculator

Solution

The third proportional to 141,518 and 309,278 is: 675,906.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,518 : 309,278 = 309,278 : x
  2. Step 2: Convert to fraction form
    141,518/309,278 = 309,278/x
  3. Step 3: Cross multiply
    141,518x = 309,278 × 309,278
  4. Step 4: Simplify right side
    141,518x = 95,652,881,284
  5. Step 5: Solve for x
    x = 95,652,881,284/141,518
  6. Step 6: Final answer
    x = 675,906.11

Related Problems

Find third proportional to 70,759 and 154,639
Half scale
Find third proportional to 283,036 and 618,556
Double scale
Find third proportional to 141,520 and 309,282
Similar ratio
Find third proportional to 212,277 and 463,917
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.