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Finding the Fourth Proportional to 187.30, 281.54 and 174.62

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Solution

The fourth proportional to 187.30, 281.54 and 174.62 is: 262.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    187.30 : 281.54 = 174.62 : x
  2. Step 2: Convert to fraction form
    187.30/281.54 = 174.62/x
  3. Step 3: Cross multiply
    187.30x = 281.54 × 174.62
  4. Step 4: Simplify right side
    187.30x = 49,162.51
  5. Step 5: Solve for x
    x = 49,162.51/187.30
  6. Step 6: Final answer
    x = 262.48

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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.