Home / 212,613-319,881

Finding the Third Proportional to 212,613 and 319,881

Calculator

Solution

The third proportional to 212,613 and 319,881 is: 481,268.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,613 : 319,881 = 319,881 : x
  2. Step 2: Convert to fraction form
    212,613/319,881 = 319,881/x
  3. Step 3: Cross multiply
    212,613x = 319,881 × 319,881
  4. Step 4: Simplify right side
    212,613x = 102,323,854,161
  5. Step 5: Solve for x
    x = 102,323,854,161/212,613
  6. Step 6: Final answer
    x = 481,268.10

Related Problems

Find third proportional to 106,306.50 and 159,940.50
Half scale
Find third proportional to 425,226 and 639,762
Double scale
Find third proportional to 212,615 and 319,884
Similar ratio
Find third proportional to 318,919.50 and 479,821.50
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.