Finding the Fourth Proportional to 217,622.73, 300,348.69 and 122,134.68
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Solution
The fourth proportional to 217,622.73, 300,348.69 and 122,134.68 is: 168,562.31
Step by Step Solution
- Step 1: Write the proportion equation
217,622.73 : 300,348.69 = 122,134.68 : x - Step 2: Convert to fraction form
217,622.73/300,348.69 = 122,134.68/x - Step 3: Cross multiply
217,622.73x = 300,348.69 × 122,134.68 - Step 4: Simplify right side
217,622.73x = 36,682,991,141.57 - Step 5: Solve for x
x = 36,682,991,141.57/217,622.73 - Step 6: Final answer
x = 168,562.31
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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.