Finding the Fourth Proportional to 428,174.93, 590,917.40 and 237,206.09
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Solution
The fourth proportional to 428,174.93, 590,917.40 and 237,206.09 is: 327,364.35
Step by Step Solution
- Step 1: Write the proportion equation
428,174.93 : 590,917.40 = 237,206.09 : x - Step 2: Convert to fraction form
428,174.93/590,917.40 = 237,206.09/x - Step 3: Cross multiply
428,174.93x = 590,917.40 × 237,206.09 - Step 4: Simplify right side
428,174.93x = 140,169,207,147.75 - Step 5: Solve for x
x = 140,169,207,147.75/428,174.93 - Step 6: Final answer
x = 327,364.35
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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.