Home / 128,968-276,968

Finding the Third Proportional to 128,968 and 276,968

Calculator

Solution

The third proportional to 128,968 and 276,968 is: 594,808.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,968 : 276,968 = 276,968 : x
  2. Step 2: Convert to fraction form
    128,968/276,968 = 276,968/x
  3. Step 3: Cross multiply
    128,968x = 276,968 × 276,968
  4. Step 4: Simplify right side
    128,968x = 76,711,273,024
  5. Step 5: Solve for x
    x = 76,711,273,024/128,968
  6. Step 6: Final answer
    x = 594,808.58

Related Problems

Find third proportional to 64,484 and 138,484
Half scale
Find third proportional to 257,936 and 553,936
Double scale
Find third proportional to 128,970 and 276,972
Similar ratio
Find third proportional to 193,452 and 415,452
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.