Finding the Fourth Proportional to 378,391.09, 522,393.29 and 251,240.53
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Solution
The fourth proportional to 378,391.09, 522,393.29 and 251,240.53 is: 346,853.74
Step by Step Solution
- Step 1: Write the proportion equation
378,391.09 : 522,393.29 = 251,240.53 : x - Step 2: Convert to fraction form
378,391.09/522,393.29 = 251,240.53/x - Step 3: Cross multiply
378,391.09x = 522,393.29 × 251,240.53 - Step 4: Simplify right side
378,391.09x = 131,246,365,791.84 - Step 5: Solve for x
x = 131,246,365,791.84/378,391.09 - Step 6: Final answer
x = 346,853.74
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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.