Home / 66,382-143,366

Finding the Third Proportional to 66,382 and 143,366

Calculator

Solution

The third proportional to 66,382 and 143,366 is: 309,629.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,382 : 143,366 = 143,366 : x
  2. Step 2: Convert to fraction form
    66,382/143,366 = 143,366/x
  3. Step 3: Cross multiply
    66,382x = 143,366 × 143,366
  4. Step 4: Simplify right side
    66,382x = 20,553,809,956
  5. Step 5: Solve for x
    x = 20,553,809,956/66,382
  6. Step 6: Final answer
    x = 309,629.27

Related Problems

Find third proportional to 33,191 and 71,683
Half scale
Find third proportional to 132,764 and 286,732
Double scale
Find third proportional to 66,384 and 143,370
Similar ratio
Find third proportional to 99,573 and 215,049
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.