Finding the Fourth Proportional to 388,121.63, 582,182.44 and 107,638.88
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Solution
The fourth proportional to 388,121.63, 582,182.44 and 107,638.88 is: 161,458.31
Step by Step Solution
- Step 1: Write the proportion equation
388,121.63 : 582,182.44 = 107,638.88 : x - Step 2: Convert to fraction form
388,121.63/582,182.44 = 107,638.88/x - Step 3: Cross multiply
388,121.63x = 582,182.44 × 107,638.88 - Step 4: Simplify right side
388,121.63x = 62,665,462,617.26 - Step 5: Solve for x
x = 62,665,462,617.26/388,121.63 - Step 6: Final answer
x = 161,458.31
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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.