Home / 256.12-384.19-93.76

Finding the Fourth Proportional to 256.12, 384.19 and 93.76

Calculator

Solution

The fourth proportional to 256.12, 384.19 and 93.76 is: 140.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    256.12 : 384.19 = 93.76 : x
  2. Step 2: Convert to fraction form
    256.12/384.19 = 93.76/x
  3. Step 3: Cross multiply
    256.12x = 384.19 × 93.76
  4. Step 4: Simplify right side
    256.12x = 36,021.65
  5. Step 5: Solve for x
    x = 36,021.65/256.12
  6. Step 6: Final answer
    x = 140.64

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.