Home / 129,684-268,368

Finding the Third Proportional to 129,684 and 268,368

Calculator

Solution

The third proportional to 129,684 and 268,368 is: 555,360.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,684 : 268,368 = 268,368 : x
  2. Step 2: Convert to fraction form
    129,684/268,368 = 268,368/x
  3. Step 3: Cross multiply
    129,684x = 268,368 × 268,368
  4. Step 4: Simplify right side
    129,684x = 72,021,383,424
  5. Step 5: Solve for x
    x = 72,021,383,424/129,684
  6. Step 6: Final answer
    x = 555,360.60

Related Problems

Find third proportional to 64,842 and 134,184
Half scale
Find third proportional to 259,368 and 536,736
Double scale
Find third proportional to 129,686 and 268,372
Similar ratio
Find third proportional to 194,526 and 402,552
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.