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Finding the Fourth Proportional to 185.14, 277.77 and 69.64

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Solution

The fourth proportional to 185.14, 277.77 and 69.64 is: 104.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    185.14 : 277.77 = 69.64 : x
  2. Step 2: Convert to fraction form
    185.14/277.77 = 69.64/x
  3. Step 3: Cross multiply
    185.14x = 277.77 × 69.64
  4. Step 4: Simplify right side
    185.14x = 19,343.90
  5. Step 5: Solve for x
    x = 19,343.90/185.14
  6. Step 6: Final answer
    x = 104.48

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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.