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Finding the Fourth Proportional to 199,912.86, 300,017.79 and 94,732.20

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Solution

The fourth proportional to 199,912.86, 300,017.79 and 94,732.20 is: 142,168.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,912.86 : 300,017.79 = 94,732.20 : x
  2. Step 2: Convert to fraction form
    199,912.86/300,017.79 = 94,732.20/x
  3. Step 3: Cross multiply
    199,912.86x = 300,017.79 × 94,732.20
  4. Step 4: Simplify right side
    199,912.86x = 28,421,345,285.84
  5. Step 5: Solve for x
    x = 28,421,345,285.84/199,912.86
  6. Step 6: Final answer
    x = 142,168.67

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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.