Finding the Fourth Proportional to 287,647.74, 396,915.39 and 174,448.62
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Solution
The fourth proportional to 287,647.74, 396,915.39 and 174,448.62 is: 240,715.75
Step by Step Solution
- Step 1: Write the proportion equation
287,647.74 : 396,915.39 = 174,448.62 : x - Step 2: Convert to fraction form
287,647.74/396,915.39 = 174,448.62/x - Step 3: Cross multiply
287,647.74x = 396,915.39 × 174,448.62 - Step 4: Simplify right side
287,647.74x = 69,241,342,042.26 - Step 5: Solve for x
x = 69,241,342,042.26/287,647.74 - Step 6: Final answer
x = 240,715.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.