Finding the Fourth Proportional to 317,744.44, 438,485.63 and 172,548.97
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Solution
The fourth proportional to 317,744.44, 438,485.63 and 172,548.97 is: 238,116.65
Step by Step Solution
- Step 1: Write the proportion equation
317,744.44 : 438,485.63 = 172,548.97 : x - Step 2: Convert to fraction form
317,744.44/438,485.63 = 172,548.97/x - Step 3: Cross multiply
317,744.44x = 438,485.63 × 172,548.97 - Step 4: Simplify right side
317,744.44x = 75,660,241,857.34 - Step 5: Solve for x
x = 75,660,241,857.34/317,744.44 - Step 6: Final answer
x = 238,116.65
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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.