Finding the Fourth Proportional to 305,131.24, 421,105.95 and 169,207.75
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Solution
The fourth proportional to 305,131.24, 421,105.95 and 169,207.75 is: 233,520.46
Step by Step Solution
- Step 1: Write the proportion equation
305,131.24 : 421,105.95 = 169,207.75 : x - Step 2: Convert to fraction form
305,131.24/421,105.95 = 169,207.75/x - Step 3: Cross multiply
305,131.24x = 421,105.95 × 169,207.75 - Step 4: Simplify right side
305,131.24x = 71,254,387,359.54 - Step 5: Solve for x
x = 71,254,387,359.54/305,131.24 - Step 6: Final answer
x = 233,520.46
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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.