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Finding the Fourth Proportional to 165.06, 227.70 and 135.54

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Solution

The fourth proportional to 165.06, 227.70 and 135.54 is: 186.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    165.06 : 227.70 = 135.54 : x
  2. Step 2: Convert to fraction form
    165.06/227.70 = 135.54/x
  3. Step 3: Cross multiply
    165.06x = 227.70 × 135.54
  4. Step 4: Simplify right side
    165.06x = 30,862.46
  5. Step 5: Solve for x
    x = 30,862.46/165.06
  6. Step 6: Final answer
    x = 186.98

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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.