Home / 129,683-268,366

Finding the Third Proportional to 129,683 and 268,366

Calculator

Solution

The third proportional to 129,683 and 268,366 is: 555,356.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,683 : 268,366 = 268,366 : x
  2. Step 2: Convert to fraction form
    129,683/268,366 = 268,366/x
  3. Step 3: Cross multiply
    129,683x = 268,366 × 268,366
  4. Step 4: Simplify right side
    129,683x = 72,020,309,956
  5. Step 5: Solve for x
    x = 72,020,309,956/129,683
  6. Step 6: Final answer
    x = 555,356.60

Related Problems

Find third proportional to 64,841.50 and 134,183
Half scale
Find third proportional to 259,366 and 536,732
Double scale
Find third proportional to 129,685 and 268,370
Similar ratio
Find third proportional to 194,524.50 and 402,549
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.