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Finding the Fourth Proportional to 188,306.78, 259,867.80 and 102,268.98

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Solution

The fourth proportional to 188,306.78, 259,867.80 and 102,268.98 is: 141,133.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,306.78 : 259,867.80 = 102,268.98 : x
  2. Step 2: Convert to fraction form
    188,306.78/259,867.80 = 102,268.98/x
  3. Step 3: Cross multiply
    188,306.78x = 259,867.80 × 102,268.98
  4. Step 4: Simplify right side
    188,306.78x = 26,576,414,840.84
  5. Step 5: Solve for x
    x = 26,576,414,840.84/188,306.78
  6. Step 6: Final answer
    x = 141,133.61

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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.