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Finding the Fourth Proportional to 333,408, 500,112 and 99,936

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Solution

The fourth proportional to 333,408, 500,112 and 99,936 is: 149,904

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,408 : 500,112 = 99,936 : x
  2. Step 2: Convert to fraction form
    333,408/500,112 = 99,936/x
  3. Step 3: Cross multiply
    333,408x = 500,112 × 99,936
  4. Step 4: Simplify right side
    333,408x = 49,979,192,832
  5. Step 5: Solve for x
    x = 49,979,192,832/333,408
  6. Step 6: Final answer
    x = 149,904

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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.