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Finding the Fourth Proportional to 247,760.37, 371,550.11 and 105,620.15

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Solution

The fourth proportional to 247,760.37, 371,550.11 and 105,620.15 is: 158,391.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,760.37 : 371,550.11 = 105,620.15 : x
  2. Step 2: Convert to fraction form
    247,760.37/371,550.11 = 105,620.15/x
  3. Step 3: Cross multiply
    247,760.37x = 371,550.11 × 105,620.15
  4. Step 4: Simplify right side
    247,760.37x = 39,243,178,751.49
  5. Step 5: Solve for x
    x = 39,243,178,751.49/247,760.37
  6. Step 6: Final answer
    x = 158,391.67

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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.