Finding the Fourth Proportional to 252,464.26, 378,683.42 and 74,972.74
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Solution
The fourth proportional to 252,464.26, 378,683.42 and 74,972.74 is: 112,455.26
Step by Step Solution
- Step 1: Write the proportion equation
252,464.26 : 378,683.42 = 74,972.74 : x - Step 2: Convert to fraction form
252,464.26/378,683.42 = 74,972.74/x - Step 3: Cross multiply
252,464.26x = 378,683.42 × 74,972.74 - Step 4: Simplify right side
252,464.26x = 28,390,933,589.97 - Step 5: Solve for x
x = 28,390,933,589.97/252,464.26 - Step 6: Final answer
x = 112,455.26
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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.