Home / 242,880-513,472

Finding the Third Proportional to 242,880 and 513,472

Calculator

Solution

The third proportional to 242,880 and 513,472 is: 1,085,529.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,880 : 513,472 = 513,472 : x
  2. Step 2: Convert to fraction form
    242,880/513,472 = 513,472/x
  3. Step 3: Cross multiply
    242,880x = 513,472 × 513,472
  4. Step 4: Simplify right side
    242,880x = 263,653,494,784
  5. Step 5: Solve for x
    x = 263,653,494,784/242,880
  6. Step 6: Final answer
    x = 1,085,529.87

Related Problems

Find third proportional to 121,440 and 256,736
Half scale
Find third proportional to 485,760 and 1,026,944
Double scale
Find third proportional to 242,882 and 513,476
Similar ratio
Find third proportional to 364,320 and 770,208
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.