Home / 120,515-262,478

Finding the Third Proportional to 120,515 and 262,478

Calculator

Solution

The third proportional to 120,515 and 262,478 is: 571,669.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,515 : 262,478 = 262,478 : x
  2. Step 2: Convert to fraction form
    120,515/262,478 = 262,478/x
  3. Step 3: Cross multiply
    120,515x = 262,478 × 262,478
  4. Step 4: Simplify right side
    120,515x = 68,894,700,484
  5. Step 5: Solve for x
    x = 68,894,700,484/120,515
  6. Step 6: Final answer
    x = 571,669.09

Related Problems

Find third proportional to 60,257.50 and 131,239
Half scale
Find third proportional to 241,030 and 524,956
Double scale
Find third proportional to 120,517 and 262,482
Similar ratio
Find third proportional to 180,772.50 and 393,717
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.