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Finding the Fourth Proportional to 216,152.61, 298,278.23 and 120,665.36

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Solution

The fourth proportional to 216,152.61, 298,278.23 and 120,665.36 is: 166,511.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,152.61 : 298,278.23 = 120,665.36 : x
  2. Step 2: Convert to fraction form
    216,152.61/298,278.23 = 120,665.36/x
  3. Step 3: Cross multiply
    216,152.61x = 298,278.23 × 120,665.36
  4. Step 4: Simplify right side
    216,152.61x = 35,991,850,003.11
  5. Step 5: Solve for x
    x = 35,991,850,003.11/216,152.61
  6. Step 6: Final answer
    x = 166,511.29

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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.