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Finding the Fourth Proportional to 165.88, 228.48 and 134.88

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Solution

The fourth proportional to 165.88, 228.48 and 134.88 is: 185.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    165.88 : 228.48 = 134.88 : x
  2. Step 2: Convert to fraction form
    165.88/228.48 = 134.88/x
  3. Step 3: Cross multiply
    165.88x = 228.48 × 134.88
  4. Step 4: Simplify right side
    165.88x = 30,817.38
  5. Step 5: Solve for x
    x = 30,817.38/165.88
  6. Step 6: Final answer
    x = 185.78

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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.