Home / 206,392-421,533

Finding the Third Proportional to 206,392 and 421,533

Calculator

Solution

The third proportional to 206,392 and 421,533 is: 860,934.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,392 : 421,533 = 421,533 : x
  2. Step 2: Convert to fraction form
    206,392/421,533 = 421,533/x
  3. Step 3: Cross multiply
    206,392x = 421,533 × 421,533
  4. Step 4: Simplify right side
    206,392x = 177,690,070,089
  5. Step 5: Solve for x
    x = 177,690,070,089/206,392
  6. Step 6: Final answer
    x = 860,934.87

Related Problems

Find third proportional to 103,196 and 210,766.50
Half scale
Find third proportional to 412,784 and 843,066
Double scale
Find third proportional to 206,394 and 421,537
Similar ratio
Find third proportional to 309,588 and 632,299.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.