Finding the Fourth Proportional to 372,143.61, 513,553.36 and 202,374.09
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Solution
The fourth proportional to 372,143.61, 513,553.36 and 202,374.09 is: 279,273.62
Step by Step Solution
- Step 1: Write the proportion equation
372,143.61 : 513,553.36 = 202,374.09 : x - Step 2: Convert to fraction form
372,143.61/513,553.36 = 202,374.09/x - Step 3: Cross multiply
372,143.61x = 513,553.36 × 202,374.09 - Step 4: Simplify right side
372,143.61x = 103,929,893,896.44 - Step 5: Solve for x
x = 103,929,893,896.44/372,143.61 - Step 6: Final answer
x = 279,273.62
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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.