Finding the Fourth Proportional to 378,860.18, 522,819.63 and 206,779.38
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Solution
The fourth proportional to 378,860.18, 522,819.63 and 206,779.38 is: 285,351.50
Step by Step Solution
- Step 1: Write the proportion equation
378,860.18 : 522,819.63 = 206,779.38 : x - Step 2: Convert to fraction form
378,860.18/522,819.63 = 206,779.38/x - Step 3: Cross multiply
378,860.18x = 522,819.63 × 206,779.38 - Step 4: Simplify right side
378,860.18x = 108,108,318,943.23 - Step 5: Solve for x
x = 108,108,318,943.23/378,860.18 - Step 6: Final answer
x = 285,351.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.