Finding the Fourth Proportional to 213,787.44, 320,792.67 and 155,107.26
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Solution
The fourth proportional to 213,787.44, 320,792.67 and 155,107.26 is: 232,741.79
Step by Step Solution
- Step 1: Write the proportion equation
213,787.44 : 320,792.67 = 155,107.26 : x - Step 2: Convert to fraction form
213,787.44/320,792.67 = 155,107.26/x - Step 3: Cross multiply
213,787.44x = 320,792.67 × 155,107.26 - Step 4: Simplify right side
213,787.44x = 49,757,272,071.78 - Step 5: Solve for x
x = 49,757,272,071.78/213,787.44 - Step 6: Final answer
x = 232,741.79
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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.