Home / 65-170.75

Finding the Third Proportional to 65 and 170.75

Calculator

Solution

The third proportional to 65 and 170.75 is: 448.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    65 : 170.75 = 170.75 : x
  2. Step 2: Convert to fraction form
    65/170.75 = 170.75/x
  3. Step 3: Cross multiply
    65x = 170.75 × 170.75
  4. Step 4: Simplify right side
    65x = 29,155.56
  5. Step 5: Solve for x
    x = 29,155.56/65
  6. Step 6: Final answer
    x = 448.55

Related Problems

Find third proportional to 32.50 and 85.38
Half scale
Find third proportional to 130 and 341.50
Double scale
Find third proportional to 67 and 176
Similar ratio
Find third proportional to 97.50 and 256.13
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.