Finding the Fourth Proportional to 305,486.18, 421,559.90 and 169,526.06
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Solution
The fourth proportional to 305,486.18, 421,559.90 and 169,526.06 is: 233,939.84
Step by Step Solution
- Step 1: Write the proportion equation
305,486.18 : 421,559.90 = 169,526.06 : x - Step 2: Convert to fraction form
305,486.18/421,559.90 = 169,526.06/x - Step 3: Cross multiply
305,486.18x = 421,559.90 × 169,526.06 - Step 4: Simplify right side
305,486.18x = 71,465,388,900.99 - Step 5: Solve for x
x = 71,465,388,900.99/305,486.18 - Step 6: Final answer
x = 233,939.84
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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.