Finding the Fourth Proportional to 217,988.36, 327,108.72 and 91,618.64
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Solution
The fourth proportional to 217,988.36, 327,108.72 and 91,618.64 is: 137,480.99
Step by Step Solution
- Step 1: Write the proportion equation
217,988.36 : 327,108.72 = 91,618.64 : x - Step 2: Convert to fraction form
217,988.36/327,108.72 = 91,618.64/x - Step 3: Cross multiply
217,988.36x = 327,108.72 × 91,618.64 - Step 4: Simplify right side
217,988.36x = 29,969,256,058.54 - Step 5: Solve for x
x = 29,969,256,058.54/217,988.36 - Step 6: Final answer
x = 137,480.99
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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.