Finding the Fourth Proportional to 285,183.48, 393,134.08 and 217,081.84
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Solution
The fourth proportional to 285,183.48, 393,134.08 and 217,081.84 is: 299,253.90
Step by Step Solution
- Step 1: Write the proportion equation
285,183.48 : 393,134.08 = 217,081.84 : x - Step 2: Convert to fraction form
285,183.48/393,134.08 = 217,081.84/x - Step 3: Cross multiply
285,183.48x = 393,134.08 × 217,081.84 - Step 4: Simplify right side
285,183.48x = 85,342,269,453.11 - Step 5: Solve for x
x = 85,342,269,453.11/285,183.48 - Step 6: Final answer
x = 299,253.90
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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.