Home / 172,978-259,467

Finding the Third Proportional to 172,978 and 259,467

Calculator

Solution

The third proportional to 172,978 and 259,467 is: 389,200.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,978 : 259,467 = 259,467 : x
  2. Step 2: Convert to fraction form
    172,978/259,467 = 259,467/x
  3. Step 3: Cross multiply
    172,978x = 259,467 × 259,467
  4. Step 4: Simplify right side
    172,978x = 67,323,124,089
  5. Step 5: Solve for x
    x = 67,323,124,089/172,978
  6. Step 6: Final answer
    x = 389,200.50

Related Problems

Find third proportional to 86,489 and 129,733.50
Half scale
Find third proportional to 345,956 and 518,934
Double scale
Find third proportional to 172,980 and 259,470
Similar ratio
Find third proportional to 259,467 and 389,200.50
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.