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Finding the Fourth Proportional to 446,951.78, 616,793.40 and 245,747.78

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Solution

The fourth proportional to 446,951.78, 616,793.40 and 245,747.78 is: 339,131.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,951.78 : 616,793.40 = 245,747.78 : x
  2. Step 2: Convert to fraction form
    446,951.78/616,793.40 = 245,747.78/x
  3. Step 3: Cross multiply
    446,951.78x = 616,793.40 × 245,747.78
  4. Step 4: Simplify right side
    446,951.78x = 151,575,608,768.65
  5. Step 5: Solve for x
    x = 151,575,608,768.65/446,951.78
  6. Step 6: Final answer
    x = 339,131.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.