Finding the Fourth Proportional to 397,046.56, 547,957.84 and 218,235.68
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Solution
The fourth proportional to 397,046.56, 547,957.84 and 218,235.68 is: 301,183.70
Step by Step Solution
- Step 1: Write the proportion equation
397,046.56 : 547,957.84 = 218,235.68 : x - Step 2: Convert to fraction form
397,046.56/547,957.84 = 218,235.68/x - Step 3: Cross multiply
397,046.56x = 547,957.84 × 218,235.68 - Step 4: Simplify right side
397,046.56x = 119,583,951,823.73 - Step 5: Solve for x
x = 119,583,951,823.73/397,046.56 - Step 6: Final answer
x = 301,183.70
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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.