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Finding the Fourth Proportional to 353,374.83, 530,067.87 and 87,135.44

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Solution

The fourth proportional to 353,374.83, 530,067.87 and 87,135.44 is: 130,704.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,374.83 : 530,067.87 = 87,135.44 : x
  2. Step 2: Convert to fraction form
    353,374.83/530,067.87 = 87,135.44/x
  3. Step 3: Cross multiply
    353,374.83x = 530,067.87 × 87,135.44
  4. Step 4: Simplify right side
    353,374.83x = 46,187,694,431.97
  5. Step 5: Solve for x
    x = 46,187,694,431.97/353,374.83
  6. Step 6: Final answer
    x = 130,704.54

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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.