Home / 129,758-279,523

Finding the Third Proportional to 129,758 and 279,523

Calculator

Solution

The third proportional to 129,758 and 279,523 is: 602,144.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,758 : 279,523 = 279,523 : x
  2. Step 2: Convert to fraction form
    129,758/279,523 = 279,523/x
  3. Step 3: Cross multiply
    129,758x = 279,523 × 279,523
  4. Step 4: Simplify right side
    129,758x = 78,133,107,529
  5. Step 5: Solve for x
    x = 78,133,107,529/129,758
  6. Step 6: Final answer
    x = 602,144.82

Related Problems

Find third proportional to 64,879 and 139,761.50
Half scale
Find third proportional to 259,516 and 559,046
Double scale
Find third proportional to 129,760 and 279,527
Similar ratio
Find third proportional to 194,637 and 419,284.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.