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Finding the Fourth Proportional to 204,058.40, 306,087.60 and 79,399.40

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Solution

The fourth proportional to 204,058.40, 306,087.60 and 79,399.40 is: 119,099.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,058.40 : 306,087.60 = 79,399.40 : x
  2. Step 2: Convert to fraction form
    204,058.40/306,087.60 = 79,399.40/x
  3. Step 3: Cross multiply
    204,058.40x = 306,087.60 × 79,399.40
  4. Step 4: Simplify right side
    204,058.40x = 24,303,171,787.44
  5. Step 5: Solve for x
    x = 24,303,171,787.44/204,058.40
  6. Step 6: Final answer
    x = 119,099.10

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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.