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Finding the Fourth Proportional to 188,072.28, 259,558 and 107,484.42

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Solution

The fourth proportional to 188,072.28, 259,558 and 107,484.42 is: 148,338.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,072.28 : 259,558 = 107,484.42 : x
  2. Step 2: Convert to fraction form
    188,072.28/259,558 = 107,484.42/x
  3. Step 3: Cross multiply
    188,072.28x = 259,558 × 107,484.42
  4. Step 4: Simplify right side
    188,072.28x = 27,898,441,086.36
  5. Step 5: Solve for x
    x = 27,898,441,086.36/188,072.28
  6. Step 6: Final answer
    x = 148,338.93

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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.