Home / 138,330-212,925

Finding the Third Proportional to 138,330 and 212,925

Calculator

Solution

The third proportional to 138,330 and 212,925 is: 327,745.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,330 : 212,925 = 212,925 : x
  2. Step 2: Convert to fraction form
    138,330/212,925 = 212,925/x
  3. Step 3: Cross multiply
    138,330x = 212,925 × 212,925
  4. Step 4: Simplify right side
    138,330x = 45,337,055,625
  5. Step 5: Solve for x
    x = 45,337,055,625/138,330
  6. Step 6: Final answer
    x = 327,745.65

Related Problems

Find third proportional to 69,165 and 106,462.50
Half scale
Find third proportional to 276,660 and 425,850
Double scale
Find third proportional to 138,332 and 212,928
Similar ratio
Find third proportional to 207,495 and 319,387.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.