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Finding the Fourth Proportional to 207,289.44, 311,087.88 and 154,104.48

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Solution

The fourth proportional to 207,289.44, 311,087.88 and 154,104.48 is: 231,271.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,289.44 : 311,087.88 = 154,104.48 : x
  2. Step 2: Convert to fraction form
    207,289.44/311,087.88 = 154,104.48/x
  3. Step 3: Cross multiply
    207,289.44x = 311,087.88 × 154,104.48
  4. Step 4: Simplify right side
    207,289.44x = 47,940,035,981.70
  5. Step 5: Solve for x
    x = 47,940,035,981.70/207,289.44
  6. Step 6: Final answer
    x = 231,271.00

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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.