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Finding the Fourth Proportional to 245,951.78, 368,892.59 and 77,467.73

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Solution

The fourth proportional to 245,951.78, 368,892.59 and 77,467.73 is: 116,190.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,951.78 : 368,892.59 = 77,467.73 : x
  2. Step 2: Convert to fraction form
    245,951.78/368,892.59 = 77,467.73/x
  3. Step 3: Cross multiply
    245,951.78x = 368,892.59 × 77,467.73
  4. Step 4: Simplify right side
    245,951.78x = 28,577,269,329.32
  5. Step 5: Solve for x
    x = 28,577,269,329.32/245,951.78
  6. Step 6: Final answer
    x = 116,190.54

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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.