Home / 121,939-266,222

Finding the Third Proportional to 121,939 and 266,222

Calculator

Solution

The third proportional to 121,939 and 266,222 is: 581,226.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,939 : 266,222 = 266,222 : x
  2. Step 2: Convert to fraction form
    121,939/266,222 = 266,222/x
  3. Step 3: Cross multiply
    121,939x = 266,222 × 266,222
  4. Step 4: Simplify right side
    121,939x = 70,874,153,284
  5. Step 5: Solve for x
    x = 70,874,153,284/121,939
  6. Step 6: Final answer
    x = 581,226.30

Related Problems

Find third proportional to 60,969.50 and 133,111
Half scale
Find third proportional to 243,878 and 532,444
Double scale
Find third proportional to 121,941 and 266,226
Similar ratio
Find third proportional to 182,908.50 and 399,333
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.