Finding the Fourth Proportional to 355,968.44, 533,938.84 and 131,231.68
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Solution
The fourth proportional to 355,968.44, 533,938.84 and 131,231.68 is: 196,842.43
Step by Step Solution
- Step 1: Write the proportion equation
355,968.44 : 533,938.84 = 131,231.68 : x - Step 2: Convert to fraction form
355,968.44/533,938.84 = 131,231.68/x - Step 3: Cross multiply
355,968.44x = 533,938.84 × 131,231.68 - Step 4: Simplify right side
355,968.44x = 70,069,690,990.45 - Step 5: Solve for x
x = 70,069,690,990.45/355,968.44 - Step 6: Final answer
x = 196,842.43
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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.