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Finding the Fourth Proportional to 174.93, 241.31 and 112.74

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Solution

The fourth proportional to 174.93, 241.31 and 112.74 is: 155.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.93 : 241.31 = 112.74 : x
  2. Step 2: Convert to fraction form
    174.93/241.31 = 112.74/x
  3. Step 3: Cross multiply
    174.93x = 241.31 × 112.74
  4. Step 4: Simplify right side
    174.93x = 27,204.67
  5. Step 5: Solve for x
    x = 27,204.67/174.93
  6. Step 6: Final answer
    x = 155.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.