Home / 188,931-399,189

Finding the Third Proportional to 188,931 and 399,189

Calculator

Solution

The third proportional to 188,931 and 399,189 is: 843,439.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,931 : 399,189 = 399,189 : x
  2. Step 2: Convert to fraction form
    188,931/399,189 = 399,189/x
  3. Step 3: Cross multiply
    188,931x = 399,189 × 399,189
  4. Step 4: Simplify right side
    188,931x = 159,351,857,721
  5. Step 5: Solve for x
    x = 159,351,857,721/188,931
  6. Step 6: Final answer
    x = 843,439.44

Related Problems

Find third proportional to 94,465.50 and 199,594.50
Half scale
Find third proportional to 377,862 and 798,378
Double scale
Find third proportional to 188,933 and 399,193
Similar ratio
Find third proportional to 283,396.50 and 598,783.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.