Home / 129,805-281,753

Finding the Third Proportional to 129,805 and 281,753

Calculator

Solution

The third proportional to 129,805 and 281,753 is: 611,569.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,805 : 281,753 = 281,753 : x
  2. Step 2: Convert to fraction form
    129,805/281,753 = 281,753/x
  3. Step 3: Cross multiply
    129,805x = 281,753 × 281,753
  4. Step 4: Simplify right side
    129,805x = 79,384,753,009
  5. Step 5: Solve for x
    x = 79,384,753,009/129,805
  6. Step 6: Final answer
    x = 611,569.30

Related Problems

Find third proportional to 64,902.50 and 140,876.50
Half scale
Find third proportional to 259,610 and 563,506
Double scale
Find third proportional to 129,807 and 281,757
Similar ratio
Find third proportional to 194,707.50 and 422,629.50
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.