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Finding the Fourth Proportional to 97.69, 146.42 and 46.23

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Solution

The fourth proportional to 97.69, 146.42 and 46.23 is: 69.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    97.69 : 146.42 = 46.23 : x
  2. Step 2: Convert to fraction form
    97.69/146.42 = 46.23/x
  3. Step 3: Cross multiply
    97.69x = 146.42 × 46.23
  4. Step 4: Simplify right side
    97.69x = 6,768.77
  5. Step 5: Solve for x
    x = 6,768.77/97.69
  6. Step 6: Final answer
    x = 69.29

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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.