Home / 142,478-202,517

Finding the Third Proportional to 142,478 and 202,517

Calculator

Solution

The third proportional to 142,478 and 202,517 is: 287,855.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,478 : 202,517 = 202,517 : x
  2. Step 2: Convert to fraction form
    142,478/202,517 = 202,517/x
  3. Step 3: Cross multiply
    142,478x = 202,517 × 202,517
  4. Step 4: Simplify right side
    142,478x = 41,013,135,289
  5. Step 5: Solve for x
    x = 41,013,135,289/142,478
  6. Step 6: Final answer
    x = 287,855.92

Related Problems

Find third proportional to 71,239 and 101,258.50
Half scale
Find third proportional to 284,956 and 405,034
Double scale
Find third proportional to 142,480 and 202,520
Similar ratio
Find third proportional to 213,717 and 303,775.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.