Home / 121,144-282,970

Finding the Third Proportional to 121,144 and 282,970

Calculator

Solution

The third proportional to 121,144 and 282,970 is: 660,965.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,144 : 282,970 = 282,970 : x
  2. Step 2: Convert to fraction form
    121,144/282,970 = 282,970/x
  3. Step 3: Cross multiply
    121,144x = 282,970 × 282,970
  4. Step 4: Simplify right side
    121,144x = 80,072,020,900
  5. Step 5: Solve for x
    x = 80,072,020,900/121,144
  6. Step 6: Final answer
    x = 660,965.64

Related Problems

Find third proportional to 60,572 and 141,485
Half scale
Find third proportional to 242,288 and 565,940
Double scale
Find third proportional to 121,146 and 282,975
Similar ratio
Find third proportional to 181,716 and 424,455
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.