Home / 135,384-210,480

Finding the Third Proportional to 135,384 and 210,480

Calculator

Solution

The third proportional to 135,384 and 210,480 is: 327,230.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,384 : 210,480 = 210,480 : x
  2. Step 2: Convert to fraction form
    135,384/210,480 = 210,480/x
  3. Step 3: Cross multiply
    135,384x = 210,480 × 210,480
  4. Step 4: Simplify right side
    135,384x = 44,301,830,400
  5. Step 5: Solve for x
    x = 44,301,830,400/135,384
  6. Step 6: Final answer
    x = 327,230.92

Related Problems

Find third proportional to 67,692 and 105,240
Half scale
Find third proportional to 270,768 and 420,960
Double scale
Find third proportional to 135,386 and 210,483
Similar ratio
Find third proportional to 203,076 and 315,720
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.