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Finding the Fourth Proportional to 385, 576.86 and 241

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Solution

The fourth proportional to 385, 576.86 and 241 is: 361.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    385 : 576.86 = 241 : x
  2. Step 2: Convert to fraction form
    385/576.86 = 241/x
  3. Step 3: Cross multiply
    385x = 576.86 × 241
  4. Step 4: Simplify right side
    385x = 139,023.26
  5. Step 5: Solve for x
    x = 139,023.26/385
  6. Step 6: Final answer
    x = 361.10

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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.