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Finding the Fourth Proportional to 385.36, 578.20 and 241.36

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Solution

The fourth proportional to 385.36, 578.20 and 241.36 is: 362.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    385.36 : 578.20 = 241.36 : x
  2. Step 2: Convert to fraction form
    385.36/578.20 = 241.36/x
  3. Step 3: Cross multiply
    385.36x = 578.20 × 241.36
  4. Step 4: Simplify right side
    385.36x = 139,554.35
  5. Step 5: Solve for x
    x = 139,554.35/385.36
  6. Step 6: Final answer
    x = 362.14

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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.