Finding the Fourth Proportional to 396,992.11, 595,153.39 and 172,183.23
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Solution
The fourth proportional to 396,992.11, 595,153.39 and 172,183.23 is: 258,129.65
Step by Step Solution
- Step 1: Write the proportion equation
396,992.11 : 595,153.39 = 172,183.23 : x - Step 2: Convert to fraction form
396,992.11/595,153.39 = 172,183.23/x - Step 3: Cross multiply
396,992.11x = 595,153.39 × 172,183.23 - Step 4: Simplify right side
396,992.11x = 102,475,433,038.57 - Step 5: Solve for x
x = 102,475,433,038.57/396,992.11 - Step 6: Final answer
x = 258,129.65
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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.