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Finding the Fourth Proportional to 183.66, 253.82 and 137.19

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Solution

The fourth proportional to 183.66, 253.82 and 137.19 is: 189.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.66 : 253.82 = 137.19 : x
  2. Step 2: Convert to fraction form
    183.66/253.82 = 137.19/x
  3. Step 3: Cross multiply
    183.66x = 253.82 × 137.19
  4. Step 4: Simplify right side
    183.66x = 34,821.57
  5. Step 5: Solve for x
    x = 34,821.57/183.66
  6. Step 6: Final answer
    x = 189.60

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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.