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Finding the Fourth Proportional to 442.10, 662.93 and 164.44

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Solution

The fourth proportional to 442.10, 662.93 and 164.44 is: 246.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    442.10 : 662.93 = 164.44 : x
  2. Step 2: Convert to fraction form
    442.10/662.93 = 164.44/x
  3. Step 3: Cross multiply
    442.10x = 662.93 × 164.44
  4. Step 4: Simplify right side
    442.10x = 109,012.21
  5. Step 5: Solve for x
    x = 109,012.21/442.10
  6. Step 6: Final answer
    x = 246.58

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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.