Finding the Fourth Proportional to 355,043.07, 489,968.07 and 193,896.81
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Solution
The fourth proportional to 355,043.07, 489,968.07 and 193,896.81 is: 267,582.31
Step by Step Solution
- Step 1: Write the proportion equation
355,043.07 : 489,968.07 = 193,896.81 : x - Step 2: Convert to fraction form
355,043.07/489,968.07 = 193,896.81/x - Step 3: Cross multiply
355,043.07x = 489,968.07 × 193,896.81 - Step 4: Simplify right side
355,043.07x = 95,003,245,774.86 - Step 5: Solve for x
x = 95,003,245,774.86/355,043.07 - Step 6: Final answer
x = 267,582.31
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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.