Finding the Fourth Proportional to 328,576.42, 492,882.57 and 103,920.09
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Solution
The fourth proportional to 328,576.42, 492,882.57 and 103,920.09 is: 155,885.80
Step by Step Solution
- Step 1: Write the proportion equation
328,576.42 : 492,882.57 = 103,920.09 : x - Step 2: Convert to fraction form
328,576.42/492,882.57 = 103,920.09/x - Step 3: Cross multiply
328,576.42x = 492,882.57 × 103,920.09 - Step 4: Simplify right side
328,576.42x = 51,220,399,185.52 - Step 5: Solve for x
x = 51,220,399,185.52/328,576.42 - Step 6: Final answer
x = 155,885.80
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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.