Finding the Fourth Proportional to 396,503.07, 547,174.70 and 215,214.99
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Solution
The fourth proportional to 396,503.07, 547,174.70 and 215,214.99 is: 296,996.94
Step by Step Solution
- Step 1: Write the proportion equation
396,503.07 : 547,174.70 = 215,214.99 : x - Step 2: Convert to fraction form
396,503.07/547,174.70 = 215,214.99/x - Step 3: Cross multiply
396,503.07x = 547,174.70 × 215,214.99 - Step 4: Simplify right side
396,503.07x = 117,760,197,588.75 - Step 5: Solve for x
x = 117,760,197,588.75/396,503.07 - Step 6: Final answer
x = 296,996.94
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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.