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Finding the Fourth Proportional to 228,512.52, 315,350.64 and 131,662.98

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Solution

The fourth proportional to 228,512.52, 315,350.64 and 131,662.98 is: 181,696.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,512.52 : 315,350.64 = 131,662.98 : x
  2. Step 2: Convert to fraction form
    228,512.52/315,350.64 = 131,662.98/x
  3. Step 3: Cross multiply
    228,512.52x = 315,350.64 × 131,662.98
  4. Step 4: Simplify right side
    228,512.52x = 41,520,005,007.31
  5. Step 5: Solve for x
    x = 41,520,005,007.31/228,512.52
  6. Step 6: Final answer
    x = 181,696.85

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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.