Home / 65-140.25

Finding the Third Proportional to 65 and 140.25

Calculator

Solution

The third proportional to 65 and 140.25 is: 302.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65 : 140.25 = 140.25 : x
  2. Step 2: Convert to fraction form
    65/140.25 = 140.25/x
  3. Step 3: Cross multiply
    65x = 140.25 × 140.25
  4. Step 4: Simplify right side
    65x = 19,670.06
  5. Step 5: Solve for x
    x = 19,670.06/65
  6. Step 6: Final answer
    x = 302.62

Related Problems

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.