Finding the Fourth Proportional to 189,957.48, 284,821.10 and 130,728.08
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Solution
The fourth proportional to 189,957.48, 284,821.10 and 130,728.08 is: 196,012.89
Step by Step Solution
- Step 1: Write the proportion equation
189,957.48 : 284,821.10 = 130,728.08 : x - Step 2: Convert to fraction form
189,957.48/284,821.10 = 130,728.08/x - Step 3: Cross multiply
189,957.48x = 284,821.10 × 130,728.08 - Step 4: Simplify right side
189,957.48x = 37,234,115,546.49 - Step 5: Solve for x
x = 37,234,115,546.49/189,957.48 - Step 6: Final answer
x = 196,012.89
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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.