Home / 188,483-409,678

Finding the Third Proportional to 188,483 and 409,678

Calculator

Solution

The third proportional to 188,483 and 409,678 is: 890,457.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,483 : 409,678 = 409,678 : x
  2. Step 2: Convert to fraction form
    188,483/409,678 = 409,678/x
  3. Step 3: Cross multiply
    188,483x = 409,678 × 409,678
  4. Step 4: Simplify right side
    188,483x = 167,836,063,684
  5. Step 5: Solve for x
    x = 167,836,063,684/188,483
  6. Step 6: Final answer
    x = 890,457.30

Related Problems

Find third proportional to 94,241.50 and 204,839
Half scale
Find third proportional to 376,966 and 819,356
Double scale
Find third proportional to 188,485 and 409,682
Similar ratio
Find third proportional to 282,724.50 and 614,517
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.