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Finding the Fourth Proportional to 231,625.37, 319,639.97 and 131,023.37

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Solution

The fourth proportional to 231,625.37, 319,639.97 and 131,023.37 is: 180,810.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,625.37 : 319,639.97 = 131,023.37 : x
  2. Step 2: Convert to fraction form
    231,625.37/319,639.97 = 131,023.37/x
  3. Step 3: Cross multiply
    231,625.37x = 319,639.97 × 131,023.37
  4. Step 4: Simplify right side
    231,625.37x = 41,880,305,400.98
  5. Step 5: Solve for x
    x = 41,880,305,400.98/231,625.37
  6. Step 6: Final answer
    x = 180,810.53

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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.