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Finding the Fourth Proportional to 488.23, 732.36 and 199.47

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Solution

The fourth proportional to 488.23, 732.36 and 199.47 is: 299.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.23 : 732.36 = 199.47 : x
  2. Step 2: Convert to fraction form
    488.23/732.36 = 199.47/x
  3. Step 3: Cross multiply
    488.23x = 732.36 × 199.47
  4. Step 4: Simplify right side
    488.23x = 146,083.85
  5. Step 5: Solve for x
    x = 146,083.85/488.23
  6. Step 6: Final answer
    x = 299.21

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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.