Finding the Fourth Proportional to 218,491.44, 301,518.68 and 121,694.51
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Solution
The fourth proportional to 218,491.44, 301,518.68 and 121,694.51 is: 167,938.69
Step by Step Solution
- Step 1: Write the proportion equation
218,491.44 : 301,518.68 = 121,694.51 : x - Step 2: Convert to fraction form
218,491.44/301,518.68 = 121,694.51/x - Step 3: Cross multiply
218,491.44x = 301,518.68 × 121,694.51 - Step 4: Simplify right side
218,491.44x = 36,693,165,902.38 - Step 5: Solve for x
x = 36,693,165,902.38/218,491.44 - Step 6: Final answer
x = 167,938.69
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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.