Home / 368-438

Finding the Third Proportional to 368 and 438

Calculator

Solution

The third proportional to 368 and 438 is: 521.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    368 : 438 = 438 : x
  2. Step 2: Convert to fraction form
    368/438 = 438/x
  3. Step 3: Cross multiply
    368x = 438 × 438
  4. Step 4: Simplify right side
    368x = 191,844
  5. Step 5: Solve for x
    x = 191,844/368
  6. Step 6: Final answer
    x = 521.32

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.