Home / 100,836-219,816

Finding the Third Proportional to 100,836 and 219,816

Calculator

Solution

The third proportional to 100,836 and 219,816 is: 479,184.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,836 : 219,816 = 219,816 : x
  2. Step 2: Convert to fraction form
    100,836/219,816 = 219,816/x
  3. Step 3: Cross multiply
    100,836x = 219,816 × 219,816
  4. Step 4: Simplify right side
    100,836x = 48,319,073,856
  5. Step 5: Solve for x
    x = 48,319,073,856/100,836
  6. Step 6: Final answer
    x = 479,184.75

Related Problems

Find third proportional to 50,418 and 109,908
Half scale
Find third proportional to 201,672 and 439,632
Double scale
Find third proportional to 100,838 and 219,820
Similar ratio
Find third proportional to 151,254 and 329,724
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.