Finding the Fourth Proportional to 428,177.30, 590,879.68 and 231,940.08
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Solution
The fourth proportional to 428,177.30, 590,879.68 and 231,940.08 is: 320,074.61
Step by Step Solution
- Step 1: Write the proportion equation
428,177.30 : 590,879.68 = 231,940.08 : x - Step 2: Convert to fraction form
428,177.30/590,879.68 = 231,940.08/x - Step 3: Cross multiply
428,177.30x = 590,879.68 × 231,940.08 - Step 4: Simplify right side
428,177.30x = 137,048,679,669.72 - Step 5: Solve for x
x = 137,048,679,669.72/428,177.30 - Step 6: Final answer
x = 320,074.61
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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.