Home / 165,939-390,057.75

Finding the Third Proportional to 165,939 and 390,057.75

Calculator

Solution

The third proportional to 165,939 and 390,057.75 is: 916,873.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,939 : 390,057.75 = 390,057.75 : x
  2. Step 2: Convert to fraction form
    165,939/390,057.75 = 390,057.75/x
  3. Step 3: Cross multiply
    165,939x = 390,057.75 × 390,057.75
  4. Step 4: Simplify right side
    165,939x = 152,145,048,335.06
  5. Step 5: Solve for x
    x = 152,145,048,335.06/165,939
  6. Step 6: Final answer
    x = 916,873.36

Related Problems

Find third proportional to 82,969.50 and 195,028.88
Half scale
Find third proportional to 331,878 and 780,115.50
Double scale
Find third proportional to 165,941 and 390,062
Similar ratio
Find third proportional to 248,908.50 and 585,086.63
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.