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Finding the Fourth Proportional to 329,437.05, 494,319.60 and 187,391.40

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Solution

The fourth proportional to 329,437.05, 494,319.60 and 187,391.40 is: 281,180.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,437.05 : 494,319.60 = 187,391.40 : x
  2. Step 2: Convert to fraction form
    329,437.05/494,319.60 = 187,391.40/x
  3. Step 3: Cross multiply
    329,437.05x = 494,319.60 × 187,391.40
  4. Step 4: Simplify right side
    329,437.05x = 92,631,241,891.44
  5. Step 5: Solve for x
    x = 92,631,241,891.44/329,437.05
  6. Step 6: Final answer
    x = 281,180.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.