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Finding the Fourth Proportional to 329,804.08, 494,778.71 and 187,716.21

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Solution

The fourth proportional to 329,804.08, 494,778.71 and 187,716.21 is: 281,615.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,804.08 : 494,778.71 = 187,716.21 : x
  2. Step 2: Convert to fraction form
    329,804.08/494,778.71 = 187,716.21/x
  3. Step 3: Cross multiply
    329,804.08x = 494,778.71 × 187,716.21
  4. Step 4: Simplify right side
    329,804.08x = 92,877,984,229.89
  5. Step 5: Solve for x
    x = 92,877,984,229.89/329,804.08
  6. Step 6: Final answer
    x = 281,615.63

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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.