Home / 217,779-326,670

Finding the Third Proportional to 217,779 and 326,670

Calculator

Solution

The third proportional to 217,779 and 326,670 is: 490,007.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,779 : 326,670 = 326,670 : x
  2. Step 2: Convert to fraction form
    217,779/326,670 = 326,670/x
  3. Step 3: Cross multiply
    217,779x = 326,670 × 326,670
  4. Step 4: Simplify right side
    217,779x = 106,713,288,900
  5. Step 5: Solve for x
    x = 106,713,288,900/217,779
  6. Step 6: Final answer
    x = 490,007.25

Related Problems

Find third proportional to 108,889.50 and 163,335
Half scale
Find third proportional to 435,558 and 653,340
Double scale
Find third proportional to 217,781 and 326,673
Similar ratio
Find third proportional to 326,668.50 and 490,005
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.