Home / 273,146-428,486

Finding the Third Proportional to 273,146 and 428,486

Calculator

Solution

The third proportional to 273,146 and 428,486 is: 672,168.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,146 : 428,486 = 428,486 : x
  2. Step 2: Convert to fraction form
    273,146/428,486 = 428,486/x
  3. Step 3: Cross multiply
    273,146x = 428,486 × 428,486
  4. Step 4: Simplify right side
    273,146x = 183,600,252,196
  5. Step 5: Solve for x
    x = 183,600,252,196/273,146
  6. Step 6: Final answer
    x = 672,168.92

Related Problems

Find third proportional to 136,573 and 214,243
Half scale
Find third proportional to 546,292 and 856,972
Double scale
Find third proportional to 273,148 and 428,489
Similar ratio
Find third proportional to 409,719 and 642,729
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.