Home / 317-436.92-261.56

Finding the Fourth Proportional to 317, 436.92 and 261.56

Calculator

Solution

The fourth proportional to 317, 436.92 and 261.56 is: 360.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    317 : 436.92 = 261.56 : x
  2. Step 2: Convert to fraction form
    317/436.92 = 261.56/x
  3. Step 3: Cross multiply
    317x = 436.92 × 261.56
  4. Step 4: Simplify right side
    317x = 114,280.80
  5. Step 5: Solve for x
    x = 114,280.80/317
  6. Step 6: Final answer
    x = 360.51

Related Problems

Find fourth proportional to 158.50, 218.46 and 130.78
Half scale
Find fourth proportional to 634, 873.84 and 523.12
Double scale
Find fourth proportional to 318, 438.30 and 262.56
Similar ratio
Find fourth proportional to 475.50, 655.38 and 392.34
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.