Finding the Fourth Proportional to 213,637.97, 320,456.54 and 80,548.08
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Solution
The fourth proportional to 213,637.97, 320,456.54 and 80,548.08 is: 120,821.96
Step by Step Solution
- Step 1: Write the proportion equation
213,637.97 : 320,456.54 = 80,548.08 : x - Step 2: Convert to fraction form
213,637.97/320,456.54 = 80,548.08/x - Step 3: Cross multiply
213,637.97x = 320,456.54 × 80,548.08 - Step 4: Simplify right side
213,637.97x = 25,812,159,020.44 - Step 5: Solve for x
x = 25,812,159,020.44/213,637.97 - Step 6: Final answer
x = 120,821.96
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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.