Finding the Fourth Proportional to 387,072.62, 580,799.16 and 173,991.09
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Solution
The fourth proportional to 387,072.62, 580,799.16 and 173,991.09 is: 261,072.14
Step by Step Solution
- Step 1: Write the proportion equation
387,072.62 : 580,799.16 = 173,991.09 : x - Step 2: Convert to fraction form
387,072.62/580,799.16 = 173,991.09/x - Step 3: Cross multiply
387,072.62x = 580,799.16 × 173,991.09 - Step 4: Simplify right side
387,072.62x = 101,053,877,830.49 - Step 5: Solve for x
x = 101,053,877,830.49/387,072.62 - Step 6: Final answer
x = 261,072.14
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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.