Finding the Fourth Proportional to 372,213.70, 513,651.06 and 202,447.78
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Solution
The fourth proportional to 372,213.70, 513,651.06 and 202,447.78 is: 279,375.84
Step by Step Solution
- Step 1: Write the proportion equation
372,213.70 : 513,651.06 = 202,447.78 : x - Step 2: Convert to fraction form
372,213.70/513,651.06 = 202,447.78/x - Step 3: Cross multiply
372,213.70x = 513,651.06 × 202,447.78 - Step 4: Simplify right side
372,213.70x = 103,987,516,791.65 - Step 5: Solve for x
x = 103,987,516,791.65/372,213.70 - Step 6: Final answer
x = 279,375.84
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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.