Home / 301-480

Finding the Third Proportional to 301 and 480

Calculator

Solution

The third proportional to 301 and 480 is: 765.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    301 : 480 = 480 : x
  2. Step 2: Convert to fraction form
    301/480 = 480/x
  3. Step 3: Cross multiply
    301x = 480 × 480
  4. Step 4: Simplify right side
    301x = 230,400
  5. Step 5: Solve for x
    x = 230,400/301
  6. Step 6: Final answer
    x = 765.45

Related Problems

Find third proportional to 150.50 and 240
Half scale
Find third proportional to 602 and 960
Double scale
Find third proportional to 303 and 483
Similar ratio
Find third proportional to 451.50 and 720
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.