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Finding the Fourth Proportional to 221,258.73, 331,796.60 and 69,405.16

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Solution

The fourth proportional to 221,258.73, 331,796.60 and 69,405.16 is: 104,079.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,258.73 : 331,796.60 = 69,405.16 : x
  2. Step 2: Convert to fraction form
    221,258.73/331,796.60 = 69,405.16/x
  3. Step 3: Cross multiply
    221,258.73x = 331,796.60 × 69,405.16
  4. Step 4: Simplify right side
    221,258.73x = 23,028,395,869.22
  5. Step 5: Solve for x
    x = 23,028,395,869.22/221,258.73
  6. Step 6: Final answer
    x = 104,079.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.