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Finding the Fourth Proportional to 185, 255.30 and 107.36

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Solution

The fourth proportional to 185, 255.30 and 107.36 is: 148.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    185 : 255.30 = 107.36 : x
  2. Step 2: Convert to fraction form
    185/255.30 = 107.36/x
  3. Step 3: Cross multiply
    185x = 255.30 × 107.36
  4. Step 4: Simplify right side
    185x = 27,409.01
  5. Step 5: Solve for x
    x = 27,409.01/185
  6. Step 6: Final answer
    x = 148.16

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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.