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Finding the Fourth Proportional to 183.99, 253.94 and 136.87

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Solution

The fourth proportional to 183.99, 253.94 and 136.87 is: 188.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.99 : 253.94 = 136.87 : x
  2. Step 2: Convert to fraction form
    183.99/253.94 = 136.87/x
  3. Step 3: Cross multiply
    183.99x = 253.94 × 136.87
  4. Step 4: Simplify right side
    183.99x = 34,756.77
  5. Step 5: Solve for x
    x = 34,756.77/183.99
  6. Step 6: Final answer
    x = 188.91

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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.