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Finding the Fourth Proportional to 199,818, 299,720.09 and 50,059.60

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Solution

The fourth proportional to 199,818, 299,720.09 and 50,059.60 is: 75,087.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,818 : 299,720.09 = 50,059.60 : x
  2. Step 2: Convert to fraction form
    199,818/299,720.09 = 50,059.60/x
  3. Step 3: Cross multiply
    199,818x = 299,720.09 × 50,059.60
  4. Step 4: Simplify right side
    199,818x = 15,003,867,817.36
  5. Step 5: Solve for x
    x = 15,003,867,817.36/199,818
  6. Step 6: Final answer
    x = 75,087.67

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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.