Finding the Fourth Proportional to 278,994.15, 418,545.09 and 119,067.75
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Solution
The fourth proportional to 278,994.15, 418,545.09 and 119,067.75 is: 178,624.61
Step by Step Solution
- Step 1: Write the proportion equation
278,994.15 : 418,545.09 = 119,067.75 : x - Step 2: Convert to fraction form
278,994.15/418,545.09 = 119,067.75/x - Step 3: Cross multiply
278,994.15x = 418,545.09 × 119,067.75 - Step 4: Simplify right side
278,994.15x = 49,835,222,139.85 - Step 5: Solve for x
x = 49,835,222,139.85/278,994.15 - Step 6: Final answer
x = 178,624.61
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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.