Home / 836.59-1,255.05-288.80

Finding the Fourth Proportional to 836.59, 1,255.05 and 288.80

Calculator

Solution

The fourth proportional to 836.59, 1,255.05 and 288.80 is: 433.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    836.59 : 1,255.05 = 288.80 : x
  2. Step 2: Convert to fraction form
    836.59/1,255.05 = 288.80/x
  3. Step 3: Cross multiply
    836.59x = 1,255.05 × 288.80
  4. Step 4: Simplify right side
    836.59x = 362,452.16
  5. Step 5: Solve for x
    x = 362,452.16/836.59
  6. Step 6: Final answer
    x = 433.25

Related Problems

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.