Home / 129,440-269,936

Finding the Third Proportional to 129,440 and 269,936

Calculator

Solution

The third proportional to 129,440 and 269,936 is: 562,928.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,440 : 269,936 = 269,936 : x
  2. Step 2: Convert to fraction form
    129,440/269,936 = 269,936/x
  3. Step 3: Cross multiply
    129,440x = 269,936 × 269,936
  4. Step 4: Simplify right side
    129,440x = 72,865,444,096
  5. Step 5: Solve for x
    x = 72,865,444,096/129,440
  6. Step 6: Final answer
    x = 562,928.34

Related Problems

Find third proportional to 64,720 and 134,968
Half scale
Find third proportional to 258,880 and 539,872
Double scale
Find third proportional to 129,442 and 269,940
Similar ratio
Find third proportional to 194,160 and 404,904
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.