Finding the Fourth Proportional to 217,389.57, 299,997.34 and 120,608.09
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Solution
The fourth proportional to 217,389.57, 299,997.34 and 120,608.09 is: 166,439.01
Step by Step Solution
- Step 1: Write the proportion equation
217,389.57 : 299,997.34 = 120,608.09 : x - Step 2: Convert to fraction form
217,389.57/299,997.34 = 120,608.09/x - Step 3: Cross multiply
217,389.57x = 299,997.34 × 120,608.09 - Step 4: Simplify right side
217,389.57x = 36,182,105,505.96 - Step 5: Solve for x
x = 36,182,105,505.96/217,389.57 - Step 6: Final answer
x = 166,439.01
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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.