Finding the Fourth Proportional to 221,676.98, 305,914.56 and 126,183.68
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Solution
The fourth proportional to 221,676.98, 305,914.56 and 126,183.68 is: 174,133.66
Step by Step Solution
- Step 1: Write the proportion equation
221,676.98 : 305,914.56 = 126,183.68 : x - Step 2: Convert to fraction form
221,676.98/305,914.56 = 126,183.68/x - Step 3: Cross multiply
221,676.98x = 305,914.56 × 126,183.68 - Step 4: Simplify right side
221,676.98x = 38,601,424,946.38 - Step 5: Solve for x
x = 38,601,424,946.38/221,676.98 - Step 6: Final answer
x = 174,133.66
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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.