Finding the Fourth Proportional to 328,230.42, 492,428.61 and 91,572.92
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Solution
The fourth proportional to 328,230.42, 492,428.61 and 91,572.92 is: 137,382.53
Step by Step Solution
- Step 1: Write the proportion equation
328,230.42 : 492,428.61 = 91,572.92 : x - Step 2: Convert to fraction form
328,230.42/492,428.61 = 91,572.92/x - Step 3: Cross multiply
328,230.42x = 492,428.61 × 91,572.92 - Step 4: Simplify right side
328,230.42x = 45,093,125,709.24 - Step 5: Solve for x
x = 45,093,125,709.24/328,230.42 - Step 6: Final answer
x = 137,382.53
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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.