Home / 131,686-285,852

Finding the Third Proportional to 131,686 and 285,852

Calculator

Solution

The third proportional to 131,686 and 285,852 is: 620,501.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,686 : 285,852 = 285,852 : x
  2. Step 2: Convert to fraction form
    131,686/285,852 = 285,852/x
  3. Step 3: Cross multiply
    131,686x = 285,852 × 285,852
  4. Step 4: Simplify right side
    131,686x = 81,711,365,904
  5. Step 5: Solve for x
    x = 81,711,365,904/131,686
  6. Step 6: Final answer
    x = 620,501.54

Related Problems

Find third proportional to 65,843 and 142,926
Half scale
Find third proportional to 263,372 and 571,704
Double scale
Find third proportional to 131,688 and 285,856
Similar ratio
Find third proportional to 197,529 and 428,778
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.