Home / 121,249-263,485

Finding the Third Proportional to 121,249 and 263,485

Calculator

Solution

The third proportional to 121,249 and 263,485 is: 572,576.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,249 : 263,485 = 263,485 : x
  2. Step 2: Convert to fraction form
    121,249/263,485 = 263,485/x
  3. Step 3: Cross multiply
    121,249x = 263,485 × 263,485
  4. Step 4: Simplify right side
    121,249x = 69,424,345,225
  5. Step 5: Solve for x
    x = 69,424,345,225/121,249
  6. Step 6: Final answer
    x = 572,576.64

Related Problems

Find third proportional to 60,624.50 and 131,742.50
Half scale
Find third proportional to 242,498 and 526,970
Double scale
Find third proportional to 121,251 and 263,489
Similar ratio
Find third proportional to 181,873.50 and 395,227.50
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.