Home / 66,300-143,888

Finding the Third Proportional to 66,300 and 143,888

Calculator

Solution

The third proportional to 66,300 and 143,888 is: 312,273.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,300 : 143,888 = 143,888 : x
  2. Step 2: Convert to fraction form
    66,300/143,888 = 143,888/x
  3. Step 3: Cross multiply
    66,300x = 143,888 × 143,888
  4. Step 4: Simplify right side
    66,300x = 20,703,756,544
  5. Step 5: Solve for x
    x = 20,703,756,544/66,300
  6. Step 6: Final answer
    x = 312,273.85

Related Problems

Find third proportional to 33,150 and 71,944
Half scale
Find third proportional to 132,600 and 287,776
Double scale
Find third proportional to 66,302 and 143,892
Similar ratio
Find third proportional to 99,450 and 215,832
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.