Finding the Fourth Proportional to 453,112.11, 679,624.21 and 137,571.75
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Solution
The fourth proportional to 453,112.11, 679,624.21 and 137,571.75 is: 206,344.28
Step by Step Solution
- Step 1: Write the proportion equation
453,112.11 : 679,624.21 = 137,571.75 : x - Step 2: Convert to fraction form
453,112.11/679,624.21 = 137,571.75/x - Step 3: Cross multiply
453,112.11x = 679,624.21 × 137,571.75 - Step 4: Simplify right side
453,112.11x = 93,497,091,912.07 - Step 5: Solve for x
x = 93,497,091,912.07/453,112.11 - Step 6: Final answer
x = 206,344.28
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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.