Home / 137,986-256,288

Finding the Third Proportional to 137,986 and 256,288

Calculator

Solution

The third proportional to 137,986 and 256,288 is: 476,015.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,986 : 256,288 = 256,288 : x
  2. Step 2: Convert to fraction form
    137,986/256,288 = 256,288/x
  3. Step 3: Cross multiply
    137,986x = 256,288 × 256,288
  4. Step 4: Simplify right side
    137,986x = 65,683,538,944
  5. Step 5: Solve for x
    x = 65,683,538,944/137,986
  6. Step 6: Final answer
    x = 476,015.96

Related Problems

Find third proportional to 68,993 and 128,144
Half scale
Find third proportional to 275,972 and 512,576
Double scale
Find third proportional to 137,988 and 256,292
Similar ratio
Find third proportional to 206,979 and 384,432
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.