Home / 131,821-204,285

Finding the Third Proportional to 131,821 and 204,285

Calculator

Solution

The third proportional to 131,821 and 204,285 is: 316,583.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,821 : 204,285 = 204,285 : x
  2. Step 2: Convert to fraction form
    131,821/204,285 = 204,285/x
  3. Step 3: Cross multiply
    131,821x = 204,285 × 204,285
  4. Step 4: Simplify right side
    131,821x = 41,732,361,225
  5. Step 5: Solve for x
    x = 41,732,361,225/131,821
  6. Step 6: Final answer
    x = 316,583.56

Related Problems

Find third proportional to 65,910.50 and 102,142.50
Half scale
Find third proportional to 263,642 and 408,570
Double scale
Find third proportional to 131,823 and 204,288
Similar ratio
Find third proportional to 197,731.50 and 306,427.50
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.