Finding the Fourth Proportional to 397,694.65, 596,635.42 and 131,455.18
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Solution
The fourth proportional to 397,694.65, 596,635.42 and 131,455.18 is: 197,213.66
Step by Step Solution
- Step 1: Write the proportion equation
397,694.65 : 596,635.42 = 131,455.18 : x - Step 2: Convert to fraction form
397,694.65/596,635.42 = 131,455.18/x - Step 3: Cross multiply
397,694.65x = 596,635.42 × 131,455.18 - Step 4: Simplify right side
397,694.65x = 78,430,816,530.48 - Step 5: Solve for x
x = 78,430,816,530.48/397,694.65 - Step 6: Final answer
x = 197,213.66
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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.