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Finding the Fourth Proportional to 445,866.12, 668,830.97 and 179,628.03

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Solution

The fourth proportional to 445,866.12, 668,830.97 and 179,628.03 is: 269,454.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,866.12 : 668,830.97 = 179,628.03 : x
  2. Step 2: Convert to fraction form
    445,866.12/668,830.97 = 179,628.03/x
  3. Step 3: Cross multiply
    445,866.12x = 668,830.97 × 179,628.03
  4. Step 4: Simplify right side
    445,866.12x = 120,140,789,993.16
  5. Step 5: Solve for x
    x = 120,140,789,993.16/445,866.12
  6. Step 6: Final answer
    x = 269,454.85

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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.