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Finding the Fourth Proportional to 165.88, 248.84 and 57.66

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Solution

The fourth proportional to 165.88, 248.84 and 57.66 is: 86.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    165.88 : 248.84 = 57.66 : x
  2. Step 2: Convert to fraction form
    165.88/248.84 = 57.66/x
  3. Step 3: Cross multiply
    165.88x = 248.84 × 57.66
  4. Step 4: Simplify right side
    165.88x = 14,348.11
  5. Step 5: Solve for x
    x = 14,348.11/165.88
  6. Step 6: Final answer
    x = 86.50

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Why These Related Problems?

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