Finding the Fourth Proportional to 272,678.13, 408,827.39 and 120,792.74
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Solution
The fourth proportional to 272,678.13, 408,827.39 and 120,792.74 is: 181,105.02
Step by Step Solution
- Step 1: Write the proportion equation
272,678.13 : 408,827.39 = 120,792.74 : x - Step 2: Convert to fraction form
272,678.13/408,827.39 = 120,792.74/x - Step 3: Cross multiply
272,678.13x = 408,827.39 × 120,792.74 - Step 4: Simplify right side
272,678.13x = 49,383,377,977.05 - Step 5: Solve for x
x = 49,383,377,977.05/272,678.13 - Step 6: Final answer
x = 181,105.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.