Finding the Fourth Proportional to 221,673.96, 305,910.44 and 126,180.68
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Solution
The fourth proportional to 221,673.96, 305,910.44 and 126,180.68 is: 174,129.55
Step by Step Solution
- Step 1: Write the proportion equation
221,673.96 : 305,910.44 = 126,180.68 : x - Step 2: Convert to fraction form
221,673.96/305,910.44 = 126,180.68/x - Step 3: Cross multiply
221,673.96x = 305,910.44 × 126,180.68 - Step 4: Simplify right side
221,673.96x = 38,599,987,338.30 - Step 5: Solve for x
x = 38,599,987,338.30/221,673.96 - Step 6: Final answer
x = 174,129.55
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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.