Finding the Fourth Proportional to 378,338.26, 522,106.74 and 217,203.70
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Solution
The fourth proportional to 378,338.26, 522,106.74 and 217,203.70 is: 299,741.07
Step by Step Solution
- Step 1: Write the proportion equation
378,338.26 : 522,106.74 = 217,203.70 : x - Step 2: Convert to fraction form
378,338.26/522,106.74 = 217,203.70/x - Step 3: Cross multiply
378,338.26x = 522,106.74 × 217,203.70 - Step 4: Simplify right side
378,338.26x = 113,403,515,722.94 - Step 5: Solve for x
x = 113,403,515,722.94/378,338.26 - Step 6: Final answer
x = 299,741.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.