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Finding the Fourth Proportional to 331,072.62, 456,880.85 and 187,804.95

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Solution

The fourth proportional to 331,072.62, 456,880.85 and 187,804.95 is: 259,171.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,072.62 : 456,880.85 = 187,804.95 : x
  2. Step 2: Convert to fraction form
    331,072.62/456,880.85 = 187,804.95/x
  3. Step 3: Cross multiply
    331,072.62x = 456,880.85 × 187,804.95
  4. Step 4: Simplify right side
    331,072.62x = 85,804,485,190.21
  5. Step 5: Solve for x
    x = 85,804,485,190.21/331,072.62
  6. Step 6: Final answer
    x = 259,171.19

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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.