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Finding the Fourth Proportional to 216,120.56, 298,404.42 and 139,684.92

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Solution

The fourth proportional to 216,120.56, 298,404.42 and 139,684.92 is: 192,867.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,120.56 : 298,404.42 = 139,684.92 : x
  2. Step 2: Convert to fraction form
    216,120.56/298,404.42 = 139,684.92/x
  3. Step 3: Cross multiply
    216,120.56x = 298,404.42 × 139,684.92
  4. Step 4: Simplify right side
    216,120.56x = 41,682,597,535.35
  5. Step 5: Solve for x
    x = 41,682,597,535.35/216,120.56
  6. Step 6: Final answer
    x = 192,867.34

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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.