Home / 370.50-664.50

Finding the Third Proportional to 370.50 and 664.50

Calculator

Solution

The third proportional to 370.50 and 664.50 is: 1,191.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.50 : 664.50 = 664.50 : x
  2. Step 2: Convert to fraction form
    370.50/664.50 = 664.50/x
  3. Step 3: Cross multiply
    370.50x = 664.50 × 664.50
  4. Step 4: Simplify right side
    370.50x = 441,560.25
  5. Step 5: Solve for x
    x = 441,560.25/370.50
  6. Step 6: Final answer
    x = 1,191.80

Related Problems

Find third proportional to 185.25 and 332.25
Half scale
Find third proportional to 741 and 1,329
Double scale
Find third proportional to 373 and 668
Similar ratio
Find third proportional to 555.75 and 996.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.