Home / 155,378-339,916

Finding the Third Proportional to 155,378 and 339,916

Calculator

Solution

The third proportional to 155,378 and 339,916 is: 743,624.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,378 : 339,916 = 339,916 : x
  2. Step 2: Convert to fraction form
    155,378/339,916 = 339,916/x
  3. Step 3: Cross multiply
    155,378x = 339,916 × 339,916
  4. Step 4: Simplify right side
    155,378x = 115,542,887,056
  5. Step 5: Solve for x
    x = 115,542,887,056/155,378
  6. Step 6: Final answer
    x = 743,624.50

Related Problems

Find third proportional to 77,689 and 169,958
Half scale
Find third proportional to 310,756 and 679,832
Double scale
Find third proportional to 155,380 and 339,920
Similar ratio
Find third proportional to 233,067 and 509,874
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.