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Finding the Fourth Proportional to 228,654.37, 315,542.37 and 131,857.75

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Solution

The fourth proportional to 228,654.37, 315,542.37 and 131,857.75 is: 181,963.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,654.37 : 315,542.37 = 131,857.75 : x
  2. Step 2: Convert to fraction form
    228,654.37/315,542.37 = 131,857.75/x
  3. Step 3: Cross multiply
    228,654.37x = 315,542.37 × 131,857.75
  4. Step 4: Simplify right side
    228,654.37x = 41,606,706,937.87
  5. Step 5: Solve for x
    x = 41,606,706,937.87/228,654.37
  6. Step 6: Final answer
    x = 181,963.31

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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.