Finding the Fourth Proportional to 218,285.44, 301,231.74 and 121,487.68
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Solution
The fourth proportional to 218,285.44, 301,231.74 and 121,487.68 is: 167,651.79
Step by Step Solution
- Step 1: Write the proportion equation
218,285.44 : 301,231.74 = 121,487.68 : x - Step 2: Convert to fraction form
218,285.44/301,231.74 = 121,487.68/x - Step 3: Cross multiply
218,285.44x = 301,231.74 × 121,487.68 - Step 4: Simplify right side
218,285.44x = 36,595,945,234.96 - Step 5: Solve for x
x = 36,595,945,234.96/218,285.44 - Step 6: Final answer
x = 167,651.79
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1.5x scale
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.