Finding the Fourth Proportional to 372,213.90, 513,629.91 and 202,444.38
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Solution
The fourth proportional to 372,213.90, 513,629.91 and 202,444.38 is: 279,359.50
Step by Step Solution
- Step 1: Write the proportion equation
372,213.90 : 513,629.91 = 202,444.38 : x - Step 2: Convert to fraction form
372,213.90/513,629.91 = 202,444.38/x - Step 3: Cross multiply
372,213.90x = 513,629.91 × 202,444.38 - Step 4: Simplify right side
372,213.90x = 103,981,488,679.41 - Step 5: Solve for x
x = 103,981,488,679.41/372,213.90 - Step 6: Final answer
x = 279,359.50
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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.