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Finding the Fourth Proportional to 199,474.71, 298,962.18 and 99,662.73

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Solution

The fourth proportional to 199,474.71, 298,962.18 and 99,662.73 is: 149,369.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,474.71 : 298,962.18 = 99,662.73 : x
  2. Step 2: Convert to fraction form
    199,474.71/298,962.18 = 99,662.73/x
  3. Step 3: Cross multiply
    199,474.71x = 298,962.18 × 99,662.73
  4. Step 4: Simplify right side
    199,474.71x = 29,795,387,025.55
  5. Step 5: Solve for x
    x = 29,795,387,025.55/199,474.71
  6. Step 6: Final answer
    x = 149,369.25

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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.