Home / 135,432-210,168

Finding the Third Proportional to 135,432 and 210,168

Calculator

Solution

The third proportional to 135,432 and 210,168 is: 326,145.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,432 : 210,168 = 210,168 : x
  2. Step 2: Convert to fraction form
    135,432/210,168 = 210,168/x
  3. Step 3: Cross multiply
    135,432x = 210,168 × 210,168
  4. Step 4: Simplify right side
    135,432x = 44,170,588,224
  5. Step 5: Solve for x
    x = 44,170,588,224/135,432
  6. Step 6: Final answer
    x = 326,145.88

Related Problems

Find third proportional to 67,716 and 105,084
Half scale
Find third proportional to 270,864 and 420,336
Double scale
Find third proportional to 135,434 and 210,171
Similar ratio
Find third proportional to 203,148 and 315,252
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.