Finding the Fourth Proportional to 217,408.20, 299,951.58 and 131,334.96
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Solution
The fourth proportional to 217,408.20, 299,951.58 and 131,334.96 is: 181,198.91
Step by Step Solution
- Step 1: Write the proportion equation
217,408.20 : 299,951.58 = 131,334.96 : x - Step 2: Convert to fraction form
217,408.20/299,951.58 = 131,334.96/x - Step 3: Cross multiply
217,408.20x = 299,951.58 × 131,334.96 - Step 4: Simplify right side
217,408.20x = 39,394,128,761.24 - Step 5: Solve for x
x = 39,394,128,761.24/217,408.20 - Step 6: Final answer
x = 181,198.91
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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.