Home / 179,617-391,218

Finding the Third Proportional to 179,617 and 391,218

Calculator

Solution

The third proportional to 179,617 and 391,218 is: 852,099.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,617 : 391,218 = 391,218 : x
  2. Step 2: Convert to fraction form
    179,617/391,218 = 391,218/x
  3. Step 3: Cross multiply
    179,617x = 391,218 × 391,218
  4. Step 4: Simplify right side
    179,617x = 153,051,523,524
  5. Step 5: Solve for x
    x = 153,051,523,524/179,617
  6. Step 6: Final answer
    x = 852,099.32

Related Problems

Find third proportional to 89,808.50 and 195,609
Half scale
Find third proportional to 359,234 and 782,436
Double scale
Find third proportional to 179,619 and 391,222
Similar ratio
Find third proportional to 269,425.50 and 586,827
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.