Home / 238.50-245

Finding the Third Proportional to 238.50 and 245

Calculator

Solution

The third proportional to 238.50 and 245 is: 251.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.50 : 245 = 245 : x
  2. Step 2: Convert to fraction form
    238.50/245 = 245/x
  3. Step 3: Cross multiply
    238.50x = 245 × 245
  4. Step 4: Simplify right side
    238.50x = 60,025
  5. Step 5: Solve for x
    x = 60,025/238.50
  6. Step 6: Final answer
    x = 251.68

Related Problems

Find third proportional to 119.25 and 122.50
Half scale
Find third proportional to 477 and 490
Double scale
Find third proportional to 241 and 247
Similar ratio
Find third proportional to 357.75 and 367.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.