Finding the Fourth Proportional to 355,072.42, 489,992.34 and 193,928.12
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Solution
The fourth proportional to 355,072.42, 489,992.34 and 193,928.12 is: 267,616.65
Step by Step Solution
- Step 1: Write the proportion equation
355,072.42 : 489,992.34 = 193,928.12 : x - Step 2: Convert to fraction form
355,072.42/489,992.34 = 193,928.12/x - Step 3: Cross multiply
355,072.42x = 489,992.34 × 193,928.12 - Step 4: Simplify right side
355,072.42x = 95,023,293,310.60 - Step 5: Solve for x
x = 95,023,293,310.60/355,072.42 - Step 6: Final answer
x = 267,616.65
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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.