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Finding the Fourth Proportional to 488.08, 732.08 and 228

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Solution

The fourth proportional to 488.08, 732.08 and 228 is: 341.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.08 : 732.08 = 228 : x
  2. Step 2: Convert to fraction form
    488.08/732.08 = 228/x
  3. Step 3: Cross multiply
    488.08x = 732.08 × 228
  4. Step 4: Simplify right side
    488.08x = 166,913.10
  5. Step 5: Solve for x
    x = 166,913.10/488.08
  6. Step 6: Final answer
    x = 341.98

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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.