Finding the Fourth Proportional to 328,481.08, 492,720.78 and 79,163.08
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Solution
The fourth proportional to 328,481.08, 492,720.78 and 79,163.08 is: 118,744.42
Step by Step Solution
- Step 1: Write the proportion equation
328,481.08 : 492,720.78 = 79,163.08 : x - Step 2: Convert to fraction form
328,481.08/492,720.78 = 79,163.08/x - Step 3: Cross multiply
328,481.08x = 492,720.78 × 79,163.08 - Step 4: Simplify right side
328,481.08x = 39,005,294,524.80 - Step 5: Solve for x
x = 39,005,294,524.80/328,481.08 - Step 6: Final answer
x = 118,744.42
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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.