Finding the Fourth Proportional to 204,421.80, 306,647.10 and 115,717.80
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Solution
The fourth proportional to 204,421.80, 306,647.10 and 115,717.80 is: 173,584.85
Step by Step Solution
- Step 1: Write the proportion equation
204,421.80 : 306,647.10 = 115,717.80 : x - Step 2: Convert to fraction form
204,421.80/306,647.10 = 115,717.80/x - Step 3: Cross multiply
204,421.80x = 306,647.10 × 115,717.80 - Step 4: Simplify right side
204,421.80x = 35,484,527,788.38 - Step 5: Solve for x
x = 35,484,527,788.38/204,421.80 - Step 6: Final answer
x = 173,584.85
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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.