Home / 40,608-87,216

Finding the Third Proportional to 40,608 and 87,216

Calculator

Solution

The third proportional to 40,608 and 87,216 is: 187,318.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,608 : 87,216 = 87,216 : x
  2. Step 2: Convert to fraction form
    40,608/87,216 = 87,216/x
  3. Step 3: Cross multiply
    40,608x = 87,216 × 87,216
  4. Step 4: Simplify right side
    40,608x = 7,606,630,656
  5. Step 5: Solve for x
    x = 7,606,630,656/40,608
  6. Step 6: Final answer
    x = 187,318.52

Related Problems

Find third proportional to 20,304 and 43,608
Half scale
Find third proportional to 81,216 and 174,432
Double scale
Find third proportional to 40,610 and 87,220
Similar ratio
Find third proportional to 60,912 and 130,824
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.