Home / 151,312-219,839

Finding the Third Proportional to 151,312 and 219,839

Calculator

Solution

The third proportional to 151,312 and 219,839 is: 319,400.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,312 : 219,839 = 219,839 : x
  2. Step 2: Convert to fraction form
    151,312/219,839 = 219,839/x
  3. Step 3: Cross multiply
    151,312x = 219,839 × 219,839
  4. Step 4: Simplify right side
    151,312x = 48,329,185,921
  5. Step 5: Solve for x
    x = 48,329,185,921/151,312
  6. Step 6: Final answer
    x = 319,400.88

Related Problems

Find third proportional to 75,656 and 109,919.50
Half scale
Find third proportional to 302,624 and 439,678
Double scale
Find third proportional to 151,314 and 219,842
Similar ratio
Find third proportional to 226,968 and 329,758.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.