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Finding the Fourth Proportional to 339,579.89, 508,704.27 and 197,126.47

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Solution

The fourth proportional to 339,579.89, 508,704.27 and 197,126.47 is: 295,303.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,579.89 : 508,704.27 = 197,126.47 : x
  2. Step 2: Convert to fraction form
    339,579.89/508,704.27 = 197,126.47/x
  3. Step 3: Cross multiply
    339,579.89x = 508,704.27 × 197,126.47
  4. Step 4: Simplify right side
    339,579.89x = 100,279,077,019.03
  5. Step 5: Solve for x
    x = 100,279,077,019.03/339,579.89
  6. Step 6: Final answer
    x = 295,303.34

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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.