Home / 252,012-389,919

Finding the Third Proportional to 252,012 and 389,919

Calculator

Solution

The third proportional to 252,012 and 389,919 is: 603,292.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,012 : 389,919 = 389,919 : x
  2. Step 2: Convert to fraction form
    252,012/389,919 = 389,919/x
  3. Step 3: Cross multiply
    252,012x = 389,919 × 389,919
  4. Step 4: Simplify right side
    252,012x = 152,036,826,561
  5. Step 5: Solve for x
    x = 152,036,826,561/252,012
  6. Step 6: Final answer
    x = 603,292.01

Related Problems

Find third proportional to 126,006 and 194,959.50
Half scale
Find third proportional to 504,024 and 779,838
Double scale
Find third proportional to 252,014 and 389,922
Similar ratio
Find third proportional to 378,018 and 584,878.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.