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Finding the Fourth Proportional to 323,910.35, 485,408.81 and 152,949.66

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Solution

The fourth proportional to 323,910.35, 485,408.81 and 152,949.66 is: 229,208.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,910.35 : 485,408.81 = 152,949.66 : x
  2. Step 2: Convert to fraction form
    323,910.35/485,408.81 = 152,949.66/x
  3. Step 3: Cross multiply
    323,910.35x = 485,408.81 × 152,949.66
  4. Step 4: Simplify right side
    323,910.35x = 74,243,112,450.50
  5. Step 5: Solve for x
    x = 74,243,112,450.50/323,910.35
  6. Step 6: Final answer
    x = 229,208.83

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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.