Finding the Fourth Proportional to 258,606.93, 387,916.92 and 71,620.05
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Solution
The fourth proportional to 258,606.93, 387,916.92 and 71,620.05 is: 107,431.88
Step by Step Solution
- Step 1: Write the proportion equation
258,606.93 : 387,916.92 = 71,620.05 : x - Step 2: Convert to fraction form
258,606.93/387,916.92 = 71,620.05/x - Step 3: Cross multiply
258,606.93x = 387,916.92 × 71,620.05 - Step 4: Simplify right side
258,606.93x = 27,782,629,206.25 - Step 5: Solve for x
x = 27,782,629,206.25/258,606.93 - Step 6: Final answer
x = 107,431.88
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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.