Home / 256.83-354.45-158.57

Finding the Fourth Proportional to 256.83, 354.45 and 158.57

Calculator

Solution

The fourth proportional to 256.83, 354.45 and 158.57 is: 218.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    256.83 : 354.45 = 158.57 : x
  2. Step 2: Convert to fraction form
    256.83/354.45 = 158.57/x
  3. Step 3: Cross multiply
    256.83x = 354.45 × 158.57
  4. Step 4: Simplify right side
    256.83x = 56,205.14
  5. Step 5: Solve for x
    x = 56,205.14/256.83
  6. Step 6: Final answer
    x = 218.84

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.