Home / 66,372-143,302

Finding the Third Proportional to 66,372 and 143,302

Calculator

Solution

The third proportional to 66,372 and 143,302 is: 309,399.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,372 : 143,302 = 143,302 : x
  2. Step 2: Convert to fraction form
    66,372/143,302 = 143,302/x
  3. Step 3: Cross multiply
    66,372x = 143,302 × 143,302
  4. Step 4: Simplify right side
    66,372x = 20,535,463,204
  5. Step 5: Solve for x
    x = 20,535,463,204/66,372
  6. Step 6: Final answer
    x = 309,399.49

Related Problems

Find third proportional to 33,186 and 71,651
Half scale
Find third proportional to 132,744 and 286,604
Double scale
Find third proportional to 66,374 and 143,306
Similar ratio
Find third proportional to 99,558 and 214,953
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.