Home / 178,825-388,406

Finding the Third Proportional to 178,825 and 388,406

Calculator

Solution

The third proportional to 178,825 and 388,406 is: 843,613.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,825 : 388,406 = 388,406 : x
  2. Step 2: Convert to fraction form
    178,825/388,406 = 388,406/x
  3. Step 3: Cross multiply
    178,825x = 388,406 × 388,406
  4. Step 4: Simplify right side
    178,825x = 150,859,220,836
  5. Step 5: Solve for x
    x = 150,859,220,836/178,825
  6. Step 6: Final answer
    x = 843,613.71

Related Problems

Find third proportional to 89,412.50 and 194,203
Half scale
Find third proportional to 357,650 and 776,812
Double scale
Find third proportional to 178,827 and 388,410
Similar ratio
Find third proportional to 268,237.50 and 582,609
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.