Finding the Fourth Proportional to 319,443.75, 479,025.29 and 119,623.99
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Solution
The fourth proportional to 319,443.75, 479,025.29 and 119,623.99 is: 179,383.43
Step by Step Solution
- Step 1: Write the proportion equation
319,443.75 : 479,025.29 = 119,623.99 : x - Step 2: Convert to fraction form
319,443.75/479,025.29 = 119,623.99/x - Step 3: Cross multiply
319,443.75x = 479,025.29 × 119,623.99 - Step 4: Simplify right side
319,443.75x = 57,302,916,500.38 - Step 5: Solve for x
x = 57,302,916,500.38/319,443.75 - Step 6: Final answer
x = 179,383.43
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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.