Home / 155,838-336,279

Finding the Third Proportional to 155,838 and 336,279

Calculator

Solution

The third proportional to 155,838 and 336,279 is: 725,648.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,838 : 336,279 = 336,279 : x
  2. Step 2: Convert to fraction form
    155,838/336,279 = 336,279/x
  3. Step 3: Cross multiply
    155,838x = 336,279 × 336,279
  4. Step 4: Simplify right side
    155,838x = 113,083,565,841
  5. Step 5: Solve for x
    x = 113,083,565,841/155,838
  6. Step 6: Final answer
    x = 725,648.21

Related Problems

Find third proportional to 77,919 and 168,139.50
Half scale
Find third proportional to 311,676 and 672,558
Double scale
Find third proportional to 155,840 and 336,283
Similar ratio
Find third proportional to 233,757 and 504,418.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.