Finding the Fourth Proportional to 287,190.51, 396,367.47 and 172,532.99
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Solution
The fourth proportional to 287,190.51, 396,367.47 and 172,532.99 is: 238,122.30
Step by Step Solution
- Step 1: Write the proportion equation
287,190.51 : 396,367.47 = 172,532.99 : x - Step 2: Convert to fraction form
287,190.51/396,367.47 = 172,532.99/x - Step 3: Cross multiply
287,190.51x = 396,367.47 × 172,532.99 - Step 4: Simplify right side
287,190.51x = 68,386,464,737.84 - Step 5: Solve for x
x = 68,386,464,737.84/287,190.51 - Step 6: Final answer
x = 238,122.30
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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.