Home / 131,708-279,815

Finding the Third Proportional to 131,708 and 279,815

Calculator

Solution

The third proportional to 131,708 and 279,815 is: 594,469.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,708 : 279,815 = 279,815 : x
  2. Step 2: Convert to fraction form
    131,708/279,815 = 279,815/x
  3. Step 3: Cross multiply
    131,708x = 279,815 × 279,815
  4. Step 4: Simplify right side
    131,708x = 78,296,434,225
  5. Step 5: Solve for x
    x = 78,296,434,225/131,708
  6. Step 6: Final answer
    x = 594,469.84

Related Problems

Find third proportional to 65,854 and 139,907.50
Half scale
Find third proportional to 263,416 and 559,630
Double scale
Find third proportional to 131,710 and 279,819
Similar ratio
Find third proportional to 197,562 and 419,722.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.