Home / 207-388.50

Finding the Third Proportional to 207 and 388.50

Calculator

Solution

The third proportional to 207 and 388.50 is: 729.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    207 : 388.50 = 388.50 : x
  2. Step 2: Convert to fraction form
    207/388.50 = 388.50/x
  3. Step 3: Cross multiply
    207x = 388.50 × 388.50
  4. Step 4: Simplify right side
    207x = 150,932.25
  5. Step 5: Solve for x
    x = 150,932.25/207
  6. Step 6: Final answer
    x = 729.14

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.88) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.