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Finding the Fourth Proportional to 174.02, 241.76 and 172.44

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Solution

The fourth proportional to 174.02, 241.76 and 172.44 is: 239.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.02 : 241.76 = 172.44 : x
  2. Step 2: Convert to fraction form
    174.02/241.76 = 172.44/x
  3. Step 3: Cross multiply
    174.02x = 241.76 × 172.44
  4. Step 4: Simplify right side
    174.02x = 41,688.92
  5. Step 5: Solve for x
    x = 41,688.92/174.02
  6. Step 6: Final answer
    x = 239.56

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.