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Finding the Fourth Proportional to 484.80, 727.32 and 228

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Solution

The fourth proportional to 484.80, 727.32 and 228 is: 342.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.80 : 727.32 = 228 : x
  2. Step 2: Convert to fraction form
    484.80/727.32 = 228/x
  3. Step 3: Cross multiply
    484.80x = 727.32 × 228
  4. Step 4: Simplify right side
    484.80x = 165,828.96
  5. Step 5: Solve for x
    x = 165,828.96/484.80
  6. Step 6: Final answer
    x = 342.06

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.