Home / 257,911.54-355,901.94-143,183.50

Finding the Fourth Proportional to 257,911.54, 355,901.94 and 143,183.50

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Solution

The fourth proportional to 257,911.54, 355,901.94 and 143,183.50 is: 197,584.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,911.54 : 355,901.94 = 143,183.50 : x
  2. Step 2: Convert to fraction form
    257,911.54/355,901.94 = 143,183.50/x
  3. Step 3: Cross multiply
    257,911.54x = 355,901.94 × 143,183.50
  4. Step 4: Simplify right side
    257,911.54x = 50,959,285,425.99
  5. Step 5: Solve for x
    x = 50,959,285,425.99/257,911.54
  6. Step 6: Final answer
    x = 197,584.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.