Finding the Fourth Proportional to 206,665.62, 285,164.58 and 121,771.14
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Solution
The fourth proportional to 206,665.62, 285,164.58 and 121,771.14 is: 168,024.15
Step by Step Solution
- Step 1: Write the proportion equation
206,665.62 : 285,164.58 = 121,771.14 : x - Step 2: Convert to fraction form
206,665.62/285,164.58 = 121,771.14/x - Step 3: Cross multiply
206,665.62x = 285,164.58 × 121,771.14 - Step 4: Simplify right side
206,665.62x = 34,724,815,994.22 - Step 5: Solve for x
x = 34,724,815,994.22/206,665.62 - Step 6: Final answer
x = 168,024.15
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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.