Finding the Fourth Proportional to 327,201.78, 490,601.70 and 127,289.19
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Solution
The fourth proportional to 327,201.78, 490,601.70 and 127,289.19 is: 190,855.60
Step by Step Solution
- Step 1: Write the proportion equation
327,201.78 : 490,601.70 = 127,289.19 : x - Step 2: Convert to fraction form
327,201.78/490,601.70 = 127,289.19/x - Step 3: Cross multiply
327,201.78x = 490,601.70 × 127,289.19 - Step 4: Simplify right side
327,201.78x = 62,448,293,005.62 - Step 5: Solve for x
x = 62,448,293,005.62/327,201.78 - Step 6: Final answer
x = 190,855.60
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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.