Home / 367.50-644

Finding the Third Proportional to 367.50 and 644

Calculator

Solution

The third proportional to 367.50 and 644 is: 1,128.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.50 : 644 = 644 : x
  2. Step 2: Convert to fraction form
    367.50/644 = 644/x
  3. Step 3: Cross multiply
    367.50x = 644 × 644
  4. Step 4: Simplify right side
    367.50x = 414,736
  5. Step 5: Solve for x
    x = 414,736/367.50
  6. Step 6: Final answer
    x = 1,128.53

Related Problems

Find third proportional to 183.75 and 322
Half scale
Find third proportional to 735 and 1,288
Double scale
Find third proportional to 370 and 648
Similar ratio
Find third proportional to 551.25 and 966
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.75) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.