Finding the Fourth Proportional to 388,382.16, 582,604.68 and 107,899.44
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Solution
The fourth proportional to 388,382.16, 582,604.68 and 107,899.44 is: 161,857.89
Step by Step Solution
- Step 1: Write the proportion equation
388,382.16 : 582,604.68 = 107,899.44 : x - Step 2: Convert to fraction form
388,382.16/582,604.68 = 107,899.44/x - Step 3: Cross multiply
388,382.16x = 582,604.68 × 107,899.44 - Step 4: Simplify right side
388,382.16x = 62,862,718,713.38 - Step 5: Solve for x
x = 62,862,718,713.38/388,382.16 - Step 6: Final answer
x = 161,857.89
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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.