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Finding the Fourth Proportional to 666.37, 999.59 and 179.41

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Solution

The fourth proportional to 666.37, 999.59 and 179.41 is: 269.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    666.37 : 999.59 = 179.41 : x
  2. Step 2: Convert to fraction form
    666.37/999.59 = 179.41/x
  3. Step 3: Cross multiply
    666.37x = 999.59 × 179.41
  4. Step 4: Simplify right side
    666.37x = 179,336.44
  5. Step 5: Solve for x
    x = 179,336.44/666.37
  6. Step 6: Final answer
    x = 269.12

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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.