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Finding the Fourth Proportional to 185.27, 277.91 and 113.59

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Solution

The fourth proportional to 185.27, 277.91 and 113.59 is: 170.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    185.27 : 277.91 = 113.59 : x
  2. Step 2: Convert to fraction form
    185.27/277.91 = 113.59/x
  3. Step 3: Cross multiply
    185.27x = 277.91 × 113.59
  4. Step 4: Simplify right side
    185.27x = 31,567.80
  5. Step 5: Solve for x
    x = 31,567.80/185.27
  6. Step 6: Final answer
    x = 170.39

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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.