Finding the Fourth Proportional to 258,436.97, 387,895.33 and 132,167.44
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Solution
The fourth proportional to 258,436.97, 387,895.33 and 132,167.44 is: 198,373.84
Step by Step Solution
- Step 1: Write the proportion equation
258,436.97 : 387,895.33 = 132,167.44 : x - Step 2: Convert to fraction form
258,436.97/387,895.33 = 132,167.44/x - Step 3: Cross multiply
258,436.97x = 387,895.33 × 132,167.44 - Step 4: Simplify right side
258,436.97x = 51,267,133,404.13 - Step 5: Solve for x
x = 51,267,133,404.13/258,436.97 - Step 6: Final answer
x = 198,373.84
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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.