Home / 121,721-262,167

Finding the Third Proportional to 121,721 and 262,167

Calculator

Solution

The third proportional to 121,721 and 262,167 is: 564,664.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,721 : 262,167 = 262,167 : x
  2. Step 2: Convert to fraction form
    121,721/262,167 = 262,167/x
  3. Step 3: Cross multiply
    121,721x = 262,167 × 262,167
  4. Step 4: Simplify right side
    121,721x = 68,731,535,889
  5. Step 5: Solve for x
    x = 68,731,535,889/121,721
  6. Step 6: Final answer
    x = 564,664.57

Related Problems

Find third proportional to 60,860.50 and 131,083.50
Half scale
Find third proportional to 243,442 and 524,334
Double scale
Find third proportional to 121,723 and 262,171
Similar ratio
Find third proportional to 182,581.50 and 393,250.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.