Home / 904.72-1,357.17-255.46

Finding the Fourth Proportional to 904.72, 1,357.17 and 255.46

Calculator

Solution

The fourth proportional to 904.72, 1,357.17 and 255.46 is: 383.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    904.72 : 1,357.17 = 255.46 : x
  2. Step 2: Convert to fraction form
    904.72/1,357.17 = 255.46/x
  3. Step 3: Cross multiply
    904.72x = 1,357.17 × 255.46
  4. Step 4: Simplify right side
    904.72x = 346,702.65
  5. Step 5: Solve for x
    x = 346,702.65/904.72
  6. Step 6: Final answer
    x = 383.22

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.