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Finding the Fourth Proportional to 662.60, 993.12 and 229.52

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Solution

The fourth proportional to 662.60, 993.12 and 229.52 is: 344.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.60 : 993.12 = 229.52 : x
  2. Step 2: Convert to fraction form
    662.60/993.12 = 229.52/x
  3. Step 3: Cross multiply
    662.60x = 993.12 × 229.52
  4. Step 4: Simplify right side
    662.60x = 227,940.90
  5. Step 5: Solve for x
    x = 227,940.90/662.60
  6. Step 6: Final answer
    x = 344.01

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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.