Home / 177,236-388,920

Finding the Third Proportional to 177,236 and 388,920

Calculator

Solution

The third proportional to 177,236 and 388,920 is: 853,431.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,236 : 388,920 = 388,920 : x
  2. Step 2: Convert to fraction form
    177,236/388,920 = 388,920/x
  3. Step 3: Cross multiply
    177,236x = 388,920 × 388,920
  4. Step 4: Simplify right side
    177,236x = 151,258,766,400
  5. Step 5: Solve for x
    x = 151,258,766,400/177,236
  6. Step 6: Final answer
    x = 853,431.39

Related Problems

Find third proportional to 88,618 and 194,460
Half scale
Find third proportional to 354,472 and 777,840
Double scale
Find third proportional to 177,238 and 388,924
Similar ratio
Find third proportional to 265,854 and 583,380
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.