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Finding the Fourth Proportional to 183.63, 275.49 and 122.88

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Solution

The fourth proportional to 183.63, 275.49 and 122.88 is: 184.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.63 : 275.49 = 122.88 : x
  2. Step 2: Convert to fraction form
    183.63/275.49 = 122.88/x
  3. Step 3: Cross multiply
    183.63x = 275.49 × 122.88
  4. Step 4: Simplify right side
    183.63x = 33,852.21
  5. Step 5: Solve for x
    x = 33,852.21/183.63
  6. Step 6: Final answer
    x = 184.35

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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.