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Finding the Fourth Proportional to 192,103.70, 287,788.35 and 103,327.70

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Solution

The fourth proportional to 192,103.70, 287,788.35 and 103,327.70 is: 154,794.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,103.70 : 287,788.35 = 103,327.70 : x
  2. Step 2: Convert to fraction form
    192,103.70/287,788.35 = 103,327.70/x
  3. Step 3: Cross multiply
    192,103.70x = 287,788.35 × 103,327.70
  4. Step 4: Simplify right side
    192,103.70x = 29,736,508,292.30
  5. Step 5: Solve for x
    x = 29,736,508,292.30/192,103.70
  6. Step 6: Final answer
    x = 154,794.04

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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.