Finding the Fourth Proportional to 421,930.97, 582,270.21 and 230,940.26
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Solution
The fourth proportional to 421,930.97, 582,270.21 and 230,940.26 is: 318,700.55
Step by Step Solution
- Step 1: Write the proportion equation
421,930.97 : 582,270.21 = 230,940.26 : x - Step 2: Convert to fraction form
421,930.97/582,270.21 = 230,940.26/x - Step 3: Cross multiply
421,930.97x = 582,270.21 × 230,940.26 - Step 4: Simplify right side
421,930.97x = 134,469,633,687.66 - Step 5: Solve for x
x = 134,469,633,687.66/421,930.97 - Step 6: Final answer
x = 318,700.55
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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.