Home / 121,188-262,245

Finding the Third Proportional to 121,188 and 262,245

Calculator

Solution

The third proportional to 121,188 and 262,245 is: 567,485.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,188 : 262,245 = 262,245 : x
  2. Step 2: Convert to fraction form
    121,188/262,245 = 262,245/x
  3. Step 3: Cross multiply
    121,188x = 262,245 × 262,245
  4. Step 4: Simplify right side
    121,188x = 68,772,440,025
  5. Step 5: Solve for x
    x = 68,772,440,025/121,188
  6. Step 6: Final answer
    x = 567,485.56

Related Problems

Find third proportional to 60,594 and 131,122.50
Half scale
Find third proportional to 242,376 and 524,490
Double scale
Find third proportional to 121,190 and 262,249
Similar ratio
Find third proportional to 181,782 and 393,367.50
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.