Home / 129,432-205,824

Finding the Third Proportional to 129,432 and 205,824

Calculator

Solution

The third proportional to 129,432 and 205,824 is: 327,303.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,432 : 205,824 = 205,824 : x
  2. Step 2: Convert to fraction form
    129,432/205,824 = 205,824/x
  3. Step 3: Cross multiply
    129,432x = 205,824 × 205,824
  4. Step 4: Simplify right side
    129,432x = 42,363,518,976
  5. Step 5: Solve for x
    x = 42,363,518,976/129,432
  6. Step 6: Final answer
    x = 327,303.29

Related Problems

Find third proportional to 64,716 and 102,912
Half scale
Find third proportional to 258,864 and 411,648
Double scale
Find third proportional to 129,434 and 205,827
Similar ratio
Find third proportional to 194,148 and 308,736
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.