Finding the Fourth Proportional to 378,929.25, 522,922.41 and 209,163.42
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Solution
The fourth proportional to 378,929.25, 522,922.41 and 209,163.42 is: 288,645.54
Step by Step Solution
- Step 1: Write the proportion equation
378,929.25 : 522,922.41 = 209,163.42 : x - Step 2: Convert to fraction form
378,929.25/522,922.41 = 209,163.42/x - Step 3: Cross multiply
378,929.25x = 522,922.41 × 209,163.42 - Step 4: Simplify right side
378,929.25x = 109,376,239,670.24 - Step 5: Solve for x
x = 109,376,239,670.24/378,929.25 - Step 6: Final answer
x = 288,645.54
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.