Home / 325.13-505.13

Finding the Third Proportional to 325.13 and 505.13

Calculator

Solution

The third proportional to 325.13 and 505.13 is: 784.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.13 : 505.13 = 505.13 : x
  2. Step 2: Convert to fraction form
    325.13/505.13 = 505.13/x
  3. Step 3: Cross multiply
    325.13x = 505.13 × 505.13
  4. Step 4: Simplify right side
    325.13x = 255,151.27
  5. Step 5: Solve for x
    x = 255,151.27/325.13
  6. Step 6: Final answer
    x = 784.78

Related Problems

Find third proportional to 162.56 and 252.56
Half scale
Find third proportional to 650.25 and 1,010.25
Double scale
Find third proportional to 327 and 508
Similar ratio
Find third proportional to 487.69 and 757.69
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.