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Finding the Fourth Proportional to 368.96, 550.12 and 338.12

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Solution

The fourth proportional to 368.96, 550.12 and 338.12 is: 504.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.96 : 550.12 = 338.12 : x
  2. Step 2: Convert to fraction form
    368.96/550.12 = 338.12/x
  3. Step 3: Cross multiply
    368.96x = 550.12 × 338.12
  4. Step 4: Simplify right side
    368.96x = 186,006.57
  5. Step 5: Solve for x
    x = 186,006.57/368.96
  6. Step 6: Final answer
    x = 504.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.