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Finding the Fourth Proportional to 183.50, 275.38 and 69.50

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Solution

The fourth proportional to 183.50, 275.38 and 69.50 is: 104.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.50 : 275.38 = 69.50 : x
  2. Step 2: Convert to fraction form
    183.50/275.38 = 69.50/x
  3. Step 3: Cross multiply
    183.50x = 275.38 × 69.50
  4. Step 4: Simplify right side
    183.50x = 19,138.91
  5. Step 5: Solve for x
    x = 19,138.91/183.50
  6. Step 6: Final answer
    x = 104.30

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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.