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Finding the Fourth Proportional to 445,662.62, 668,161.47 and 268,128.04

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Solution

The fourth proportional to 445,662.62, 668,161.47 and 268,128.04 is: 401,992.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,662.62 : 668,161.47 = 268,128.04 : x
  2. Step 2: Convert to fraction form
    445,662.62/668,161.47 = 268,128.04/x
  3. Step 3: Cross multiply
    445,662.62x = 668,161.47 × 268,128.04
  4. Step 4: Simplify right side
    445,662.62x = 179,152,822,013.81
  5. Step 5: Solve for x
    x = 179,152,822,013.81/445,662.62
  6. Step 6: Final answer
    x = 401,992.03

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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.