Home / 137,436-291,720

Finding the Third Proportional to 137,436 and 291,720

Calculator

Solution

The third proportional to 137,436 and 291,720 is: 619,201.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,436 : 291,720 = 291,720 : x
  2. Step 2: Convert to fraction form
    137,436/291,720 = 291,720/x
  3. Step 3: Cross multiply
    137,436x = 291,720 × 291,720
  4. Step 4: Simplify right side
    137,436x = 85,100,558,400
  5. Step 5: Solve for x
    x = 85,100,558,400/137,436
  6. Step 6: Final answer
    x = 619,201.36

Related Problems

Find third proportional to 68,718 and 145,860
Half scale
Find third proportional to 274,872 and 583,440
Double scale
Find third proportional to 137,438 and 291,724
Similar ratio
Find third proportional to 206,154 and 437,580
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.