Finding the Fourth Proportional to 211,942.62, 292,463.87 and 121,277.79
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Solution
The fourth proportional to 211,942.62, 292,463.87 and 121,277.79 is: 167,353.65
Step by Step Solution
- Step 1: Write the proportion equation
211,942.62 : 292,463.87 = 121,277.79 : x - Step 2: Convert to fraction form
211,942.62/292,463.87 = 121,277.79/x - Step 3: Cross multiply
211,942.62x = 292,463.87 × 121,277.79 - Step 4: Simplify right side
211,942.62x = 35,469,371,202.06 - Step 5: Solve for x
x = 35,469,371,202.06/211,942.62 - Step 6: Final answer
x = 167,353.65
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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.