Home / 217,918-326,867

Finding the Third Proportional to 217,918 and 326,867

Calculator

Solution

The third proportional to 217,918 and 326,867 is: 490,285.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,918 : 326,867 = 326,867 : x
  2. Step 2: Convert to fraction form
    217,918/326,867 = 326,867/x
  3. Step 3: Cross multiply
    217,918x = 326,867 × 326,867
  4. Step 4: Simplify right side
    217,918x = 106,842,035,689
  5. Step 5: Solve for x
    x = 106,842,035,689/217,918
  6. Step 6: Final answer
    x = 490,285.50

Related Problems

Find third proportional to 108,959 and 163,433.50
Half scale
Find third proportional to 435,836 and 653,734
Double scale
Find third proportional to 217,920 and 326,870
Similar ratio
Find third proportional to 326,877 and 490,300.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.