Home / 189,385-405,371

Finding the Third Proportional to 189,385 and 405,371

Calculator

Solution

The third proportional to 189,385 and 405,371 is: 867,680.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,385 : 405,371 = 405,371 : x
  2. Step 2: Convert to fraction form
    189,385/405,371 = 405,371/x
  3. Step 3: Cross multiply
    189,385x = 405,371 × 405,371
  4. Step 4: Simplify right side
    189,385x = 164,325,647,641
  5. Step 5: Solve for x
    x = 164,325,647,641/189,385
  6. Step 6: Final answer
    x = 867,680.37

Related Problems

Find third proportional to 94,692.50 and 202,685.50
Half scale
Find third proportional to 378,770 and 810,742
Double scale
Find third proportional to 189,387 and 405,375
Similar ratio
Find third proportional to 284,077.50 and 608,056.50
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.