Home / 190,686-258,975

Finding the Third Proportional to 190,686 and 258,975

Calculator

Solution

The third proportional to 190,686 and 258,975 is: 351,719.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,686 : 258,975 = 258,975 : x
  2. Step 2: Convert to fraction form
    190,686/258,975 = 258,975/x
  3. Step 3: Cross multiply
    190,686x = 258,975 × 258,975
  4. Step 4: Simplify right side
    190,686x = 67,068,050,625
  5. Step 5: Solve for x
    x = 67,068,050,625/190,686
  6. Step 6: Final answer
    x = 351,719.85

Related Problems

Find third proportional to 95,343 and 129,487.50
Half scale
Find third proportional to 381,372 and 517,950
Double scale
Find third proportional to 190,688 and 258,978
Similar ratio
Find third proportional to 286,029 and 388,462.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.