Finding the Fourth Proportional to 252,419.78, 378,629.50 and 74,926.62
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Solution
The fourth proportional to 252,419.78, 378,629.50 and 74,926.62 is: 112,389.88
Step by Step Solution
- Step 1: Write the proportion equation
252,419.78 : 378,629.50 = 74,926.62 : x - Step 2: Convert to fraction form
252,419.78/378,629.50 = 74,926.62/x - Step 3: Cross multiply
252,419.78x = 378,629.50 × 74,926.62 - Step 4: Simplify right side
252,419.78x = 28,369,428,725.83 - Step 5: Solve for x
x = 28,369,428,725.83/252,419.78 - Step 6: Final answer
x = 112,389.88
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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.