Home / 129,642-281,414

Finding the Third Proportional to 129,642 and 281,414

Calculator

Solution

The third proportional to 129,642 and 281,414 is: 610,865.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,642 : 281,414 = 281,414 : x
  2. Step 2: Convert to fraction form
    129,642/281,414 = 281,414/x
  3. Step 3: Cross multiply
    129,642x = 281,414 × 281,414
  4. Step 4: Simplify right side
    129,642x = 79,193,839,396
  5. Step 5: Solve for x
    x = 79,193,839,396/129,642
  6. Step 6: Final answer
    x = 610,865.61

Related Problems

Find third proportional to 64,821 and 140,707
Half scale
Find third proportional to 259,284 and 562,828
Double scale
Find third proportional to 129,644 and 281,418
Similar ratio
Find third proportional to 194,463 and 422,121
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.