Finding the Fourth Proportional to 206,435.36, 284,890.92 and 121,579.76
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Solution
The fourth proportional to 206,435.36, 284,890.92 and 121,579.76 is: 167,786.03
Step by Step Solution
- Step 1: Write the proportion equation
206,435.36 : 284,890.92 = 121,579.76 : x - Step 2: Convert to fraction form
206,435.36/284,890.92 = 121,579.76/x - Step 3: Cross multiply
206,435.36x = 284,890.92 × 121,579.76 - Step 4: Simplify right side
206,435.36x = 34,636,969,679.78 - Step 5: Solve for x
x = 34,636,969,679.78/206,435.36 - Step 6: Final answer
x = 167,786.03
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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.