Finding the Fourth Proportional to 327,197.21, 490,795.80 and 90,539.88
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Solution
The fourth proportional to 327,197.21, 490,795.80 and 90,539.88 is: 135,809.82
Step by Step Solution
- Step 1: Write the proportion equation
327,197.21 : 490,795.80 = 90,539.88 : x - Step 2: Convert to fraction form
327,197.21/490,795.80 = 90,539.88/x - Step 3: Cross multiply
327,197.21x = 490,795.80 × 90,539.88 - Step 4: Simplify right side
327,197.21x = 44,436,592,836.50 - Step 5: Solve for x
x = 44,436,592,836.50/327,197.21 - Step 6: Final answer
x = 135,809.82
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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.