Home / 204,855-419,835

Finding the Third Proportional to 204,855 and 419,835

Calculator

Solution

The third proportional to 204,855 and 419,835 is: 860,420.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,855 : 419,835 = 419,835 : x
  2. Step 2: Convert to fraction form
    204,855/419,835 = 419,835/x
  3. Step 3: Cross multiply
    204,855x = 419,835 × 419,835
  4. Step 4: Simplify right side
    204,855x = 176,261,427,225
  5. Step 5: Solve for x
    x = 176,261,427,225/204,855
  6. Step 6: Final answer
    x = 860,420.43

Related Problems

Find third proportional to 102,427.50 and 209,917.50
Half scale
Find third proportional to 409,710 and 839,670
Double scale
Find third proportional to 204,857 and 419,839
Similar ratio
Find third proportional to 307,282.50 and 629,752.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.