Finding the Fourth Proportional to 202,163.20, 302,998.80 and 143,015.92
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Solution
The fourth proportional to 202,163.20, 302,998.80 and 143,015.92 is: 214,349.85
Step by Step Solution
- Step 1: Write the proportion equation
202,163.20 : 302,998.80 = 143,015.92 : x - Step 2: Convert to fraction form
202,163.20/302,998.80 = 143,015.92/x - Step 3: Cross multiply
202,163.20x = 302,998.80 × 143,015.92 - Step 4: Simplify right side
202,163.20x = 43,333,652,140.90 - Step 5: Solve for x
x = 43,333,652,140.90/202,163.20 - Step 6: Final answer
x = 214,349.85
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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.