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Finding the Fourth Proportional to 377,794, 521,355.72 and 208,027.72

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Solution

The fourth proportional to 377,794, 521,355.72 and 208,027.72 is: 287,078.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,794 : 521,355.72 = 208,027.72 : x
  2. Step 2: Convert to fraction form
    377,794/521,355.72 = 208,027.72/x
  3. Step 3: Cross multiply
    377,794x = 521,355.72 × 208,027.72
  4. Step 4: Simplify right side
    377,794x = 108,456,441,740.56
  5. Step 5: Solve for x
    x = 108,456,441,740.56/377,794
  6. Step 6: Final answer
    x = 287,078.25

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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.