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Finding the Fourth Proportional to 344,072.78, 474,850.38 and 191,140.72

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Solution

The fourth proportional to 344,072.78, 474,850.38 and 191,140.72 is: 263,790.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,072.78 : 474,850.38 = 191,140.72 : x
  2. Step 2: Convert to fraction form
    344,072.78/474,850.38 = 191,140.72/x
  3. Step 3: Cross multiply
    344,072.78x = 474,850.38 × 191,140.72
  4. Step 4: Simplify right side
    344,072.78x = 90,763,243,525.47
  5. Step 5: Solve for x
    x = 90,763,243,525.47/344,072.78
  6. Step 6: Final answer
    x = 263,790.83

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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.