Home / 354.56-531.54-171.86

Finding the Fourth Proportional to 354.56, 531.54 and 171.86

Calculator

Solution

The fourth proportional to 354.56, 531.54 and 171.86 is: 257.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.56 : 531.54 = 171.86 : x
  2. Step 2: Convert to fraction form
    354.56/531.54 = 171.86/x
  3. Step 3: Cross multiply
    354.56x = 531.54 × 171.86
  4. Step 4: Simplify right side
    354.56x = 91,347.81
  5. Step 5: Solve for x
    x = 91,347.81/354.56
  6. Step 6: Final answer
    x = 257.64

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.