Finding the Fourth Proportional to 284,942.26, 393,224.52 and 157,617.28
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Solution
The fourth proportional to 284,942.26, 393,224.52 and 157,617.28 is: 217,514.17
Step by Step Solution
- Step 1: Write the proportion equation
284,942.26 : 393,224.52 = 157,617.28 : x - Step 2: Convert to fraction form
284,942.26/393,224.52 = 157,617.28/x - Step 3: Cross multiply
284,942.26x = 393,224.52 × 157,617.28 - Step 4: Simplify right side
284,942.26x = 61,978,979,271.71 - Step 5: Solve for x
x = 61,978,979,271.71/284,942.26 - Step 6: Final answer
x = 217,514.17
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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.