Home / 100,644-215,381

Finding the Third Proportional to 100,644 and 215,381

Calculator

Solution

The third proportional to 100,644 and 215,381 is: 460,921.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,644 : 215,381 = 215,381 : x
  2. Step 2: Convert to fraction form
    100,644/215,381 = 215,381/x
  3. Step 3: Cross multiply
    100,644x = 215,381 × 215,381
  4. Step 4: Simplify right side
    100,644x = 46,388,975,161
  5. Step 5: Solve for x
    x = 46,388,975,161/100,644
  6. Step 6: Final answer
    x = 460,921.42

Related Problems

Find third proportional to 50,322 and 107,690.50
Half scale
Find third proportional to 201,288 and 430,762
Double scale
Find third proportional to 100,646 and 215,385
Similar ratio
Find third proportional to 150,966 and 323,071.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.