Home / 180,519-391,139

Finding the Third Proportional to 180,519 and 391,139

Calculator

Solution

The third proportional to 180,519 and 391,139 is: 847,499.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,519 : 391,139 = 391,139 : x
  2. Step 2: Convert to fraction form
    180,519/391,139 = 391,139/x
  3. Step 3: Cross multiply
    180,519x = 391,139 × 391,139
  4. Step 4: Simplify right side
    180,519x = 152,989,717,321
  5. Step 5: Solve for x
    x = 152,989,717,321/180,519
  6. Step 6: Final answer
    x = 847,499.25

Related Problems

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.