Finding the Fourth Proportional to 315,511.77, 472,986.99 and 115,786.44
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Solution
The fourth proportional to 315,511.77, 472,986.99 and 115,786.44 is: 173,576.66
Step by Step Solution
- Step 1: Write the proportion equation
315,511.77 : 472,986.99 = 115,786.44 : x - Step 2: Convert to fraction form
315,511.77/472,986.99 = 115,786.44/x - Step 3: Cross multiply
315,511.77x = 472,986.99 × 115,786.44 - Step 4: Simplify right side
315,511.77x = 54,765,479,738.42 - Step 5: Solve for x
x = 54,765,479,738.42/315,511.77 - Step 6: Final answer
x = 173,576.66
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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.