Home / 217,634-318,999

Finding the Third Proportional to 217,634 and 318,999

Calculator

Solution

The third proportional to 217,634 and 318,999 is: 467,575.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,634 : 318,999 = 318,999 : x
  2. Step 2: Convert to fraction form
    217,634/318,999 = 318,999/x
  3. Step 3: Cross multiply
    217,634x = 318,999 × 318,999
  4. Step 4: Simplify right side
    217,634x = 101,760,362,001
  5. Step 5: Solve for x
    x = 101,760,362,001/217,634
  6. Step 6: Final answer
    x = 467,575.66

Related Problems

Find third proportional to 108,817 and 159,499.50
Half scale
Find third proportional to 435,268 and 637,998
Double scale
Find third proportional to 217,636 and 319,002
Similar ratio
Find third proportional to 326,451 and 478,498.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.