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Finding the Fourth Proportional to 188.93, 260.83 and 127.09

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Solution

The fourth proportional to 188.93, 260.83 and 127.09 is: 175.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    188.93 : 260.83 = 127.09 : x
  2. Step 2: Convert to fraction form
    188.93/260.83 = 127.09/x
  3. Step 3: Cross multiply
    188.93x = 260.83 × 127.09
  4. Step 4: Simplify right side
    188.93x = 33,147.83
  5. Step 5: Solve for x
    x = 33,147.83/188.93
  6. Step 6: Final answer
    x = 175.45

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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.