Home / 129,966-270,144

Finding the Third Proportional to 129,966 and 270,144

Calculator

Solution

The third proportional to 129,966 and 270,144 is: 561,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,966 : 270,144 = 270,144 : x
  2. Step 2: Convert to fraction form
    129,966/270,144 = 270,144/x
  3. Step 3: Cross multiply
    129,966x = 270,144 × 270,144
  4. Step 4: Simplify right side
    129,966x = 72,977,780,736
  5. Step 5: Solve for x
    x = 72,977,780,736/129,966
  6. Step 6: Final answer
    x = 561,514.40

Related Problems

Find third proportional to 64,983 and 135,072
Half scale
Find third proportional to 259,932 and 540,288
Double scale
Find third proportional to 129,968 and 270,148
Similar ratio
Find third proportional to 194,949 and 405,216
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.