Home / 388-501

Finding the Third Proportional to 388 and 501

Calculator

Solution

The third proportional to 388 and 501 is: 646.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    388 : 501 = 501 : x
  2. Step 2: Convert to fraction form
    388/501 = 501/x
  3. Step 3: Cross multiply
    388x = 501 × 501
  4. Step 4: Simplify right side
    388x = 251,001
  5. Step 5: Solve for x
    x = 251,001/388
  6. Step 6: Final answer
    x = 646.91

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.