Home / 327-489.24-324.66

Finding the Fourth Proportional to 327, 489.24 and 324.66

Calculator

Solution

The fourth proportional to 327, 489.24 and 324.66 is: 485.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    327 : 489.24 = 324.66 : x
  2. Step 2: Convert to fraction form
    327/489.24 = 324.66/x
  3. Step 3: Cross multiply
    327x = 489.24 × 324.66
  4. Step 4: Simplify right side
    327x = 158,836.66
  5. Step 5: Solve for x
    x = 158,836.66/327
  6. Step 6: Final answer
    x = 485.74

Related Problems

Find fourth proportional to 163.50, 244.62 and 162.33
Half scale
Find fourth proportional to 654, 978.48 and 649.32
Double scale
Find fourth proportional to 328, 490.74 and 325.66
Similar ratio
Find fourth proportional to 490.50, 733.86 and 486.99
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.