Finding the Fourth Proportional to 258,437.97, 356,676.44 and 145,260.72
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Solution
The fourth proportional to 258,437.97, 356,676.44 and 145,260.72 is: 200,477.80
Step by Step Solution
- Step 1: Write the proportion equation
258,437.97 : 356,676.44 = 145,260.72 : x - Step 2: Convert to fraction form
258,437.97/356,676.44 = 145,260.72/x - Step 3: Cross multiply
258,437.97x = 356,676.44 × 145,260.72 - Step 4: Simplify right side
258,437.97x = 51,811,076,481.44 - Step 5: Solve for x
x = 51,811,076,481.44/258,437.97 - Step 6: Final answer
x = 200,477.80
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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.