Finding the Fourth Proportional to 285,537.88, 394,040.28 and 158,213.08
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Solution
The fourth proportional to 285,537.88, 394,040.28 and 158,213.08 is: 218,332.95
Step by Step Solution
- Step 1: Write the proportion equation
285,537.88 : 394,040.28 = 158,213.08 : x - Step 2: Convert to fraction form
285,537.88/394,040.28 = 158,213.08/x - Step 3: Cross multiply
285,537.88x = 394,040.28 × 158,213.08 - Step 4: Simplify right side
285,537.88x = 62,342,326,342.86 - Step 5: Solve for x
x = 62,342,326,342.86/285,537.88 - Step 6: Final answer
x = 218,332.95
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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.