Finding the Fourth Proportional to 388,598.62, 582,894.69 and 108,115.06
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Solution
The fourth proportional to 388,598.62, 582,894.69 and 108,115.06 is: 162,171.69
Step by Step Solution
- Step 1: Write the proportion equation
388,598.62 : 582,894.69 = 108,115.06 : x - Step 2: Convert to fraction form
388,598.62/582,894.69 = 108,115.06/x - Step 3: Cross multiply
388,598.62x = 582,894.69 × 108,115.06 - Step 4: Simplify right side
388,598.62x = 63,019,694,383.03 - Step 5: Solve for x
x = 63,019,694,383.03/388,598.62 - Step 6: Final answer
x = 162,171.69
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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.