Home / 281,008-421,519

Finding the Third Proportional to 281,008 and 421,519

Calculator

Solution

The third proportional to 281,008 and 421,519 is: 632,289.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,008 : 421,519 = 421,519 : x
  2. Step 2: Convert to fraction form
    281,008/421,519 = 421,519/x
  3. Step 3: Cross multiply
    281,008x = 421,519 × 421,519
  4. Step 4: Simplify right side
    281,008x = 177,678,267,361
  5. Step 5: Solve for x
    x = 177,678,267,361/281,008
  6. Step 6: Final answer
    x = 632,289.00

Related Problems

Find third proportional to 140,504 and 210,759.50
Half scale
Find third proportional to 562,016 and 843,038
Double scale
Find third proportional to 281,010 and 421,522
Similar ratio
Find third proportional to 421,512 and 632,278.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.