Finding the Fourth Proportional to 405,163.26, 608,126.24 and 205,626.85
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Solution
The fourth proportional to 405,163.26, 608,126.24 and 205,626.85 is: 308,633.81
Step by Step Solution
- Step 1: Write the proportion equation
405,163.26 : 608,126.24 = 205,626.85 : x - Step 2: Convert to fraction form
405,163.26/608,126.24 = 205,626.85/x - Step 3: Cross multiply
405,163.26x = 608,126.24 × 205,626.85 - Step 4: Simplify right side
405,163.26x = 125,047,082,127.30 - Step 5: Solve for x
x = 125,047,082,127.30/405,163.26 - Step 6: Final answer
x = 308,633.81
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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.