Finding the Fourth Proportional to 394,259.20, 591,437.97 and 154,342.09
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Solution
The fourth proportional to 394,259.20, 591,437.97 and 154,342.09 is: 231,532.39
Step by Step Solution
- Step 1: Write the proportion equation
394,259.20 : 591,437.97 = 154,342.09 : x - Step 2: Convert to fraction form
394,259.20/591,437.97 = 154,342.09/x - Step 3: Cross multiply
394,259.20x = 591,437.97 × 154,342.09 - Step 4: Simplify right side
394,259.20x = 91,283,773,134.45 - Step 5: Solve for x
x = 91,283,773,134.45/394,259.20 - Step 6: Final answer
x = 231,532.39
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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.