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Finding the Fourth Proportional to 397,286.54, 548,266.24 and 216,010.70

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Solution

The fourth proportional to 397,286.54, 548,266.24 and 216,010.70 is: 298,100.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,286.54 : 548,266.24 = 216,010.70 : x
  2. Step 2: Convert to fraction form
    397,286.54/548,266.24 = 216,010.70/x
  3. Step 3: Cross multiply
    397,286.54x = 548,266.24 × 216,010.70
  4. Step 4: Simplify right side
    397,286.54x = 118,431,374,288.77
  5. Step 5: Solve for x
    x = 118,431,374,288.77/397,286.54
  6. Step 6: Final answer
    x = 298,100.65

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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.