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Finding the Fourth Proportional to 187.51, 281.17 and 64.09

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Solution

The fourth proportional to 187.51, 281.17 and 64.09 is: 96.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    187.51 : 281.17 = 64.09 : x
  2. Step 2: Convert to fraction form
    187.51/281.17 = 64.09/x
  3. Step 3: Cross multiply
    187.51x = 281.17 × 64.09
  4. Step 4: Simplify right side
    187.51x = 18,020.62
  5. Step 5: Solve for x
    x = 18,020.62/187.51
  6. Step 6: Final answer
    x = 96.11

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.