Finding the Fourth Proportional to 217,115.22, 299,584.16 and 121,625.94
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Solution
The fourth proportional to 217,115.22, 299,584.16 and 121,625.94 is: 167,824.28
Step by Step Solution
- Step 1: Write the proportion equation
217,115.22 : 299,584.16 = 121,625.94 : x - Step 2: Convert to fraction form
217,115.22/299,584.16 = 121,625.94/x - Step 3: Cross multiply
217,115.22x = 299,584.16 × 121,625.94 - Step 4: Simplify right side
217,115.22x = 36,437,205,069.11 - Step 5: Solve for x
x = 36,437,205,069.11/217,115.22 - Step 6: Final answer
x = 167,824.28
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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.