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Finding the Fourth Proportional to 366.54, 505.27 and 278.04

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Solution

The fourth proportional to 366.54, 505.27 and 278.04 is: 383.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.54 : 505.27 = 278.04 : x
  2. Step 2: Convert to fraction form
    366.54/505.27 = 278.04/x
  3. Step 3: Cross multiply
    366.54x = 505.27 × 278.04
  4. Step 4: Simplify right side
    366.54x = 140,485.27
  5. Step 5: Solve for x
    x = 140,485.27/366.54
  6. Step 6: Final answer
    x = 383.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.