Finding the Fourth Proportional to 509,382.44, 764,072.70 and 135,405.44
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Solution
The fourth proportional to 509,382.44, 764,072.70 and 135,405.44 is: 203,107.90
Step by Step Solution
- Step 1: Write the proportion equation
509,382.44 : 764,072.70 = 135,405.44 : x - Step 2: Convert to fraction form
509,382.44/764,072.70 = 135,405.44/x - Step 3: Cross multiply
509,382.44x = 764,072.70 × 135,405.44 - Step 4: Simplify right side
509,382.44x = 103,459,600,135.49 - Step 5: Solve for x
x = 103,459,600,135.49/509,382.44 - Step 6: Final answer
x = 203,107.90
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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.