Finding the Fourth Proportional to 258,217.72, 386,137.49 and 245,620.60
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Solution
The fourth proportional to 258,217.72, 386,137.49 and 245,620.60 is: 367,299.82
Step by Step Solution
- Step 1: Write the proportion equation
258,217.72 : 386,137.49 = 245,620.60 : x - Step 2: Convert to fraction form
258,217.72/386,137.49 = 245,620.60/x - Step 3: Cross multiply
258,217.72x = 386,137.49 × 245,620.60 - Step 4: Simplify right side
258,217.72x = 94,843,321,976.29 - Step 5: Solve for x
x = 94,843,321,976.29/258,217.72 - Step 6: Final answer
x = 367,299.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.