Home / 138-370

Finding the Third Proportional to 138 and 370

Calculator

Solution

The third proportional to 138 and 370 is: 992.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    138 : 370 = 370 : x
  2. Step 2: Convert to fraction form
    138/370 = 370/x
  3. Step 3: Cross multiply
    138x = 370 × 370
  4. Step 4: Simplify right side
    138x = 136,900
  5. Step 5: Solve for x
    x = 136,900/138
  6. Step 6: Final answer
    x = 992.03

Related Problems

Why These Related Problems?

These problems maintain the same ratio (2.68) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.