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Finding the Fourth Proportional to 208,858.95, 288,230.56 and 113,365.44

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Solution

The fourth proportional to 208,858.95, 288,230.56 and 113,365.44 is: 156,447.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,858.95 : 288,230.56 = 113,365.44 : x
  2. Step 2: Convert to fraction form
    208,858.95/288,230.56 = 113,365.44/x
  3. Step 3: Cross multiply
    208,858.95x = 288,230.56 × 113,365.44
  4. Step 4: Simplify right side
    208,858.95x = 32,675,383,972.43
  5. Step 5: Solve for x
    x = 32,675,383,972.43/208,858.95
  6. Step 6: Final answer
    x = 156,447.13

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.