Finding the Fourth Proportional to 315,198.67, 434,972.09 and 179,232.62
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Solution
The fourth proportional to 315,198.67, 434,972.09 and 179,232.62 is: 247,339.84
Step by Step Solution
- Step 1: Write the proportion equation
315,198.67 : 434,972.09 = 179,232.62 : x - Step 2: Convert to fraction form
315,198.67/434,972.09 = 179,232.62/x - Step 3: Cross multiply
315,198.67x = 434,972.09 × 179,232.62 - Step 4: Simplify right side
315,198.67x = 77,961,187,317.58 - Step 5: Solve for x
x = 77,961,187,317.58/315,198.67 - Step 6: Final answer
x = 247,339.84
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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.