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Finding the Fourth Proportional to 339,956.17, 509,878.81 and 100,013.97

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Solution

The fourth proportional to 339,956.17, 509,878.81 and 100,013.97 is: 150,004.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,956.17 : 509,878.81 = 100,013.97 : x
  2. Step 2: Convert to fraction form
    339,956.17/509,878.81 = 100,013.97/x
  3. Step 3: Cross multiply
    339,956.17x = 509,878.81 × 100,013.97
  4. Step 4: Simplify right side
    339,956.17x = 50,995,004,006.98
  5. Step 5: Solve for x
    x = 50,995,004,006.98/339,956.17
  6. Step 6: Final answer
    x = 150,004.64

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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.