Finding the Fourth Proportional to 217,375.47, 299,981.21 and 131,322.49
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Solution
The fourth proportional to 217,375.47, 299,981.21 and 131,322.49 is: 181,226.89
Step by Step Solution
- Step 1: Write the proportion equation
217,375.47 : 299,981.21 = 131,322.49 : x - Step 2: Convert to fraction form
217,375.47/299,981.21 = 131,322.49/x - Step 3: Cross multiply
217,375.47x = 299,981.21 × 131,322.49 - Step 4: Simplify right side
217,375.47x = 39,394,279,450.41 - Step 5: Solve for x
x = 39,394,279,450.41/217,375.47 - Step 6: Final answer
x = 181,226.89
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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.