Home / 350-381.50

Finding the Third Proportional to 350 and 381.50

Calculator

Solution

The third proportional to 350 and 381.50 is: 415.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    350 : 381.50 = 381.50 : x
  2. Step 2: Convert to fraction form
    350/381.50 = 381.50/x
  3. Step 3: Cross multiply
    350x = 381.50 × 381.50
  4. Step 4: Simplify right side
    350x = 145,542.25
  5. Step 5: Solve for x
    x = 145,542.25/350
  6. Step 6: Final answer
    x = 415.84

Related Problems

Find third proportional to 175 and 190.75
Half scale
Find third proportional to 700 and 763
Double scale
Find third proportional to 352 and 384
Similar ratio
Find third proportional to 525 and 572.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.