Finding the Fourth Proportional to 209,748.24, 289,472.94 and 129,229.92
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Solution
The fourth proportional to 209,748.24, 289,472.94 and 129,229.92 is: 178,349.84
Step by Step Solution
- Step 1: Write the proportion equation
209,748.24 : 289,472.94 = 129,229.92 : x - Step 2: Convert to fraction form
209,748.24/289,472.94 = 129,229.92/x - Step 3: Cross multiply
209,748.24x = 289,472.94 × 129,229.92 - Step 4: Simplify right side
209,748.24x = 37,408,564,878.36 - Step 5: Solve for x
x = 37,408,564,878.36/209,748.24 - Step 6: Final answer
x = 178,349.84
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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.