Home / 66,379-143,325

Finding the Third Proportional to 66,379 and 143,325

Calculator

Solution

The third proportional to 66,379 and 143,325 is: 309,466.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,379 : 143,325 = 143,325 : x
  2. Step 2: Convert to fraction form
    66,379/143,325 = 143,325/x
  3. Step 3: Cross multiply
    66,379x = 143,325 × 143,325
  4. Step 4: Simplify right side
    66,379x = 20,542,055,625
  5. Step 5: Solve for x
    x = 20,542,055,625/66,379
  6. Step 6: Final answer
    x = 309,466.18

Related Problems

Find third proportional to 33,189.50 and 71,662.50
Half scale
Find third proportional to 132,758 and 286,650
Double scale
Find third proportional to 66,381 and 143,329
Similar ratio
Find third proportional to 99,568.50 and 214,987.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.