Home / 278.25-608.25

Finding the Third Proportional to 278.25 and 608.25

Calculator

Solution

The third proportional to 278.25 and 608.25 is: 1,329.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    278.25 : 608.25 = 608.25 : x
  2. Step 2: Convert to fraction form
    278.25/608.25 = 608.25/x
  3. Step 3: Cross multiply
    278.25x = 608.25 × 608.25
  4. Step 4: Simplify right side
    278.25x = 369,968.06
  5. Step 5: Solve for x
    x = 369,968.06/278.25
  6. Step 6: Final answer
    x = 1,329.62

Related Problems

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.