Home / 216,031-290,823

Finding the Third Proportional to 216,031 and 290,823

Calculator

Solution

The third proportional to 216,031 and 290,823 is: 391,508.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,031 : 290,823 = 290,823 : x
  2. Step 2: Convert to fraction form
    216,031/290,823 = 290,823/x
  3. Step 3: Cross multiply
    216,031x = 290,823 × 290,823
  4. Step 4: Simplify right side
    216,031x = 84,578,017,329
  5. Step 5: Solve for x
    x = 84,578,017,329/216,031
  6. Step 6: Final answer
    x = 391,508.71

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.