Finding the Fourth Proportional to 372,218.70, 513,657.96 and 202,452.78
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Solution
The fourth proportional to 372,218.70, 513,657.96 and 202,452.78 is: 279,382.74
Step by Step Solution
- Step 1: Write the proportion equation
372,218.70 : 513,657.96 = 202,452.78 : x - Step 2: Convert to fraction form
372,218.70/513,657.96 = 202,452.78/x - Step 3: Cross multiply
372,218.70x = 513,657.96 × 202,452.78 - Step 4: Simplify right side
372,218.70x = 103,991,481,971.13 - Step 5: Solve for x
x = 103,991,481,971.13/372,218.70 - Step 6: Final answer
x = 279,382.74
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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.