Finding the Fourth Proportional to 305,141.17, 421,119.77 and 169,217.75
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Solution
The fourth proportional to 305,141.17, 421,119.77 and 169,217.75 is: 233,534.33
Step by Step Solution
- Step 1: Write the proportion equation
305,141.17 : 421,119.77 = 169,217.75 : x - Step 2: Convert to fraction form
305,141.17/421,119.77 = 169,217.75/x - Step 3: Cross multiply
305,141.17x = 421,119.77 × 169,217.75 - Step 4: Simplify right side
305,141.17x = 71,260,939,113.83 - Step 5: Solve for x
x = 71,260,939,113.83/305,141.17 - Step 6: Final answer
x = 233,534.33
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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.