Home / 276,330-422,514

Finding the Third Proportional to 276,330 and 422,514

Calculator

Solution

The third proportional to 276,330 and 422,514 is: 646,032.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,330 : 422,514 = 422,514 : x
  2. Step 2: Convert to fraction form
    276,330/422,514 = 422,514/x
  3. Step 3: Cross multiply
    276,330x = 422,514 × 422,514
  4. Step 4: Simplify right side
    276,330x = 178,518,080,196
  5. Step 5: Solve for x
    x = 178,518,080,196/276,330
  6. Step 6: Final answer
    x = 646,032.21

Related Problems

Find third proportional to 138,165 and 211,257
Half scale
Find third proportional to 552,660 and 845,028
Double scale
Find third proportional to 276,332 and 422,517
Similar ratio
Find third proportional to 414,495 and 633,771
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.