Finding the Fourth Proportional to 205,935.20, 284,169.76 and 115,285.28
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Solution
The fourth proportional to 205,935.20, 284,169.76 and 115,285.28 is: 159,082.03
Step by Step Solution
- Step 1: Write the proportion equation
205,935.20 : 284,169.76 = 115,285.28 : x - Step 2: Convert to fraction form
205,935.20/284,169.76 = 115,285.28/x - Step 3: Cross multiply
205,935.20x = 284,169.76 × 115,285.28 - Step 4: Simplify right side
205,935.20x = 32,760,590,349.13 - Step 5: Solve for x
x = 32,760,590,349.13/205,935.20 - Step 6: Final answer
x = 159,082.03
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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.