Home / 349.50-399

Finding the Third Proportional to 349.50 and 399

Calculator

Solution

The third proportional to 349.50 and 399 is: 455.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.50 : 399 = 399 : x
  2. Step 2: Convert to fraction form
    349.50/399 = 399/x
  3. Step 3: Cross multiply
    349.50x = 399 × 399
  4. Step 4: Simplify right side
    349.50x = 159,201
  5. Step 5: Solve for x
    x = 159,201/349.50
  6. Step 6: Final answer
    x = 455.51

Related Problems

Find third proportional to 174.75 and 199.50
Half scale
Find third proportional to 699 and 798
Double scale
Find third proportional to 352 and 401
Similar ratio
Find third proportional to 524.25 and 598.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.