Home / 270,882-420,017

Finding the Third Proportional to 270,882 and 420,017

Calculator

Solution

The third proportional to 270,882 and 420,017 is: 651,258.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,882 : 420,017 = 420,017 : x
  2. Step 2: Convert to fraction form
    270,882/420,017 = 420,017/x
  3. Step 3: Cross multiply
    270,882x = 420,017 × 420,017
  4. Step 4: Simplify right side
    270,882x = 176,414,280,289
  5. Step 5: Solve for x
    x = 176,414,280,289/270,882
  6. Step 6: Final answer
    x = 651,258.78

Related Problems

Find third proportional to 135,441 and 210,008.50
Half scale
Find third proportional to 541,764 and 840,034
Double scale
Find third proportional to 270,884 and 420,020
Similar ratio
Find third proportional to 406,323 and 630,025.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.