Home / 379-425

Finding the Third Proportional to 379 and 425

Calculator

Solution

The third proportional to 379 and 425 is: 476.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    379 : 425 = 425 : x
  2. Step 2: Convert to fraction form
    379/425 = 425/x
  3. Step 3: Cross multiply
    379x = 425 × 425
  4. Step 4: Simplify right side
    379x = 180,625
  5. Step 5: Solve for x
    x = 180,625/379
  6. Step 6: Final answer
    x = 476.58

Related Problems

Find third proportional to 189.50 and 212.50
Half scale
Find third proportional to 758 and 850
Double scale
Find third proportional to 381 and 427
Similar ratio
Find third proportional to 568.50 and 637.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.