Finding the Fourth Proportional to 287,047.99, 396,084.09 and 172,302.31
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Solution
The fourth proportional to 287,047.99, 396,084.09 and 172,302.31 is: 237,751.90
Step by Step Solution
- Step 1: Write the proportion equation
287,047.99 : 396,084.09 = 172,302.31 : x - Step 2: Convert to fraction form
287,047.99/396,084.09 = 172,302.31/x - Step 3: Cross multiply
287,047.99x = 396,084.09 × 172,302.31 - Step 4: Simplify right side
287,047.99x = 68,246,203,661.25 - Step 5: Solve for x
x = 68,246,203,661.25/287,047.99 - Step 6: Final answer
x = 237,751.90
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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.