Finding the Fourth Proportional to 285,549.23, 428,324.84 and 72,317.09
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Solution
The fourth proportional to 285,549.23, 428,324.84 and 72,317.09 is: 108,475.88
Step by Step Solution
- Step 1: Write the proportion equation
285,549.23 : 428,324.84 = 72,317.09 : x - Step 2: Convert to fraction form
285,549.23/428,324.84 = 72,317.09/x - Step 3: Cross multiply
285,549.23x = 428,324.84 × 72,317.09 - Step 4: Simplify right side
285,549.23x = 30,975,203,500.31 - Step 5: Solve for x
x = 30,975,203,500.31/285,549.23 - Step 6: Final answer
x = 108,475.88
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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.