Home / 285.17-427.82-102.57

Finding the Fourth Proportional to 285.17, 427.82 and 102.57

Calculator

Solution

The fourth proportional to 285.17, 427.82 and 102.57 is: 153.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    285.17 : 427.82 = 102.57 : x
  2. Step 2: Convert to fraction form
    285.17/427.82 = 102.57/x
  3. Step 3: Cross multiply
    285.17x = 427.82 × 102.57
  4. Step 4: Simplify right side
    285.17x = 43,880.98
  5. Step 5: Solve for x
    x = 43,880.98/285.17
  6. Step 6: Final answer
    x = 153.88

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.