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Finding the Fourth Proportional to 165.16, 247.88 and 88.16

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Solution

The fourth proportional to 165.16, 247.88 and 88.16 is: 132.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    165.16 : 247.88 = 88.16 : x
  2. Step 2: Convert to fraction form
    165.16/247.88 = 88.16/x
  3. Step 3: Cross multiply
    165.16x = 247.88 × 88.16
  4. Step 4: Simplify right side
    165.16x = 21,853.10
  5. Step 5: Solve for x
    x = 21,853.10/165.16
  6. Step 6: Final answer
    x = 132.31

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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.