Home / 211,284-440,136

Finding the Third Proportional to 211,284 and 440,136

Calculator

Solution

The third proportional to 211,284 and 440,136 is: 916,868.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,284 : 440,136 = 440,136 : x
  2. Step 2: Convert to fraction form
    211,284/440,136 = 440,136/x
  3. Step 3: Cross multiply
    211,284x = 440,136 × 440,136
  4. Step 4: Simplify right side
    211,284x = 193,719,698,496
  5. Step 5: Solve for x
    x = 193,719,698,496/211,284
  6. Step 6: Final answer
    x = 916,868.76

Related Problems

Find third proportional to 105,642 and 220,068
Half scale
Find third proportional to 422,568 and 880,272
Double scale
Find third proportional to 211,286 and 440,140
Similar ratio
Find third proportional to 316,926 and 660,204
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.