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Finding the Fourth Proportional to 339,291, 508,936.50 and 102,628.44

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Solution

The fourth proportional to 339,291, 508,936.50 and 102,628.44 is: 153,942.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,291 : 508,936.50 = 102,628.44 : x
  2. Step 2: Convert to fraction form
    339,291/508,936.50 = 102,628.44/x
  3. Step 3: Cross multiply
    339,291x = 508,936.50 × 102,628.44
  4. Step 4: Simplify right side
    339,291x = 52,231,359,054.06
  5. Step 5: Solve for x
    x = 52,231,359,054.06/339,291
  6. Step 6: Final answer
    x = 153,942.66

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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.