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Finding the Fourth Proportional to 351,775.36, 485,474.08 and 198,760.64

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Solution

The fourth proportional to 351,775.36, 485,474.08 and 198,760.64 is: 274,303.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,775.36 : 485,474.08 = 198,760.64 : x
  2. Step 2: Convert to fraction form
    351,775.36/485,474.08 = 198,760.64/x
  3. Step 3: Cross multiply
    351,775.36x = 485,474.08 × 198,760.64
  4. Step 4: Simplify right side
    351,775.36x = 96,493,138,844.21
  5. Step 5: Solve for x
    x = 96,493,138,844.21/351,775.36
  6. Step 6: Final answer
    x = 274,303.29

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Why These Related Problems?

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