Home / 257.83-355.73-147.31

Finding the Fourth Proportional to 257.83, 355.73 and 147.31

Calculator

Solution

The fourth proportional to 257.83, 355.73 and 147.31 is: 203.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    257.83 : 355.73 = 147.31 : x
  2. Step 2: Convert to fraction form
    257.83/355.73 = 147.31/x
  3. Step 3: Cross multiply
    257.83x = 355.73 × 147.31
  4. Step 4: Simplify right side
    257.83x = 52,400.96
  5. Step 5: Solve for x
    x = 52,400.96/257.83
  6. Step 6: Final answer
    x = 203.24

Related Problems

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.