Home / 457.83-631.83-258.71

Finding the Fourth Proportional to 457.83, 631.83 and 258.71

Calculator

Solution

The fourth proportional to 457.83, 631.83 and 258.71 is: 357.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    457.83 : 631.83 = 258.71 : x
  2. Step 2: Convert to fraction form
    457.83/631.83 = 258.71/x
  3. Step 3: Cross multiply
    457.83x = 631.83 × 258.71
  4. Step 4: Simplify right side
    457.83x = 163,457.26
  5. Step 5: Solve for x
    x = 163,457.26/457.83
  6. Step 6: Final answer
    x = 357.02

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.