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Finding the Fourth Proportional to 187.01, 257.94 and 109.34

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Solution

The fourth proportional to 187.01, 257.94 and 109.34 is: 150.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    187.01 : 257.94 = 109.34 : x
  2. Step 2: Convert to fraction form
    187.01/257.94 = 109.34/x
  3. Step 3: Cross multiply
    187.01x = 257.94 × 109.34
  4. Step 4: Simplify right side
    187.01x = 28,201.87
  5. Step 5: Solve for x
    x = 28,201.87/187.01
  6. Step 6: Final answer
    x = 150.81

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