Finding the Fourth Proportional to 258,464.44, 387,696.26 and 80,985.07
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Solution
The fourth proportional to 258,464.44, 387,696.26 and 80,985.07 is: 121,477.48
Step by Step Solution
- Step 1: Write the proportion equation
258,464.44 : 387,696.26 = 80,985.07 : x - Step 2: Convert to fraction form
258,464.44/387,696.26 = 80,985.07/x - Step 3: Cross multiply
258,464.44x = 387,696.26 × 80,985.07 - Step 4: Simplify right side
258,464.44x = 31,397,608,349.91 - Step 5: Solve for x
x = 31,397,608,349.91/258,464.44 - Step 6: Final answer
x = 121,477.48
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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.