Home / 140,987-305,206

Finding the Third Proportional to 140,987 and 305,206

Calculator

Solution

The third proportional to 140,987 and 305,206 is: 660,704.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,987 : 305,206 = 305,206 : x
  2. Step 2: Convert to fraction form
    140,987/305,206 = 305,206/x
  3. Step 3: Cross multiply
    140,987x = 305,206 × 305,206
  4. Step 4: Simplify right side
    140,987x = 93,150,702,436
  5. Step 5: Solve for x
    x = 93,150,702,436/140,987
  6. Step 6: Final answer
    x = 660,704.20

Related Problems

Find third proportional to 70,493.50 and 152,603
Half scale
Find third proportional to 281,974 and 610,412
Double scale
Find third proportional to 140,989 and 305,210
Similar ratio
Find third proportional to 211,480.50 and 457,809
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.