Finding the Fourth Proportional to 305,120.48, 421,076.21 and 169,167.07
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Solution
The fourth proportional to 305,120.48, 421,076.21 and 169,167.07 is: 233,456.07
Step by Step Solution
- Step 1: Write the proportion equation
305,120.48 : 421,076.21 = 169,167.07 : x - Step 2: Convert to fraction form
305,120.48/421,076.21 = 169,167.07/x - Step 3: Cross multiply
305,120.48x = 421,076.21 × 169,167.07 - Step 4: Simplify right side
305,120.48x = 71,232,228,494.45 - Step 5: Solve for x
x = 71,232,228,494.45/305,120.48 - Step 6: Final answer
x = 233,456.07
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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.