Home / 128,414-273,460

Finding the Third Proportional to 128,414 and 273,460

Calculator

Solution

The third proportional to 128,414 and 273,460 is: 582,338.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,414 : 273,460 = 273,460 : x
  2. Step 2: Convert to fraction form
    128,414/273,460 = 273,460/x
  3. Step 3: Cross multiply
    128,414x = 273,460 × 273,460
  4. Step 4: Simplify right side
    128,414x = 74,780,371,600
  5. Step 5: Solve for x
    x = 74,780,371,600/128,414
  6. Step 6: Final answer
    x = 582,338.15

Related Problems

Find third proportional to 64,207 and 136,730
Half scale
Find third proportional to 256,828 and 546,920
Double scale
Find third proportional to 128,416 and 273,464
Similar ratio
Find third proportional to 192,621 and 410,190
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.