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Finding the Fourth Proportional to 377,745.78, 521,273.37 and 207,968.97

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Solution

The fourth proportional to 377,745.78, 521,273.37 and 207,968.97 is: 286,988.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,745.78 : 521,273.37 = 207,968.97 : x
  2. Step 2: Convert to fraction form
    377,745.78/521,273.37 = 207,968.97/x
  3. Step 3: Cross multiply
    377,745.78x = 521,273.37 × 207,968.97
  4. Step 4: Simplify right side
    377,745.78x = 108,408,685,847.33
  5. Step 5: Solve for x
    x = 108,408,685,847.33/377,745.78
  6. Step 6: Final answer
    x = 286,988.48

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1.5x scale

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.