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Finding the Fourth Proportional to 183.41, 253.03 and 121.27

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Solution

The fourth proportional to 183.41, 253.03 and 121.27 is: 167.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.41 : 253.03 = 121.27 : x
  2. Step 2: Convert to fraction form
    183.41/253.03 = 121.27/x
  3. Step 3: Cross multiply
    183.41x = 253.03 × 121.27
  4. Step 4: Simplify right side
    183.41x = 30,684.95
  5. Step 5: Solve for x
    x = 30,684.95/183.41
  6. Step 6: Final answer
    x = 167.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.