Finding the Fourth Proportional to 328,144.89, 492,219.36 and 91,489.62
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Solution
The fourth proportional to 328,144.89, 492,219.36 and 91,489.62 is: 137,234.99
Step by Step Solution
- Step 1: Write the proportion equation
328,144.89 : 492,219.36 = 91,489.62 : x - Step 2: Convert to fraction form
328,144.89/492,219.36 = 91,489.62/x - Step 3: Cross multiply
328,144.89x = 492,219.36 × 91,489.62 - Step 4: Simplify right side
328,144.89x = 45,032,962,203.04 - Step 5: Solve for x
x = 45,032,962,203.04/328,144.89 - Step 6: Final answer
x = 137,234.99
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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.