Home / 182,538-398,690

Finding the Third Proportional to 182,538 and 398,690

Calculator

Solution

The third proportional to 182,538 and 398,690 is: 870,797.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,538 : 398,690 = 398,690 : x
  2. Step 2: Convert to fraction form
    182,538/398,690 = 398,690/x
  3. Step 3: Cross multiply
    182,538x = 398,690 × 398,690
  4. Step 4: Simplify right side
    182,538x = 158,953,716,100
  5. Step 5: Solve for x
    x = 158,953,716,100/182,538
  6. Step 6: Final answer
    x = 870,797.95

Related Problems

Find third proportional to 91,269 and 199,345
Half scale
Find third proportional to 365,076 and 797,380
Double scale
Find third proportional to 182,540 and 398,694
Similar ratio
Find third proportional to 273,807 and 598,035
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.