Home / 200,234-279,939

Finding the Third Proportional to 200,234 and 279,939

Calculator

Solution

The third proportional to 200,234 and 279,939 is: 391,371.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,234 : 279,939 = 279,939 : x
  2. Step 2: Convert to fraction form
    200,234/279,939 = 279,939/x
  3. Step 3: Cross multiply
    200,234x = 279,939 × 279,939
  4. Step 4: Simplify right side
    200,234x = 78,365,843,721
  5. Step 5: Solve for x
    x = 78,365,843,721/200,234
  6. Step 6: Final answer
    x = 391,371.31

Related Problems

Find third proportional to 100,117 and 139,969.50
Half scale
Find third proportional to 400,468 and 559,878
Double scale
Find third proportional to 200,236 and 279,942
Similar ratio
Find third proportional to 300,351 and 419,908.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.