Finding the Fourth Proportional to 305,147.28, 421,146.84 and 169,211.46
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Solution
The fourth proportional to 305,147.28, 421,146.84 and 169,211.46 is: 233,535.99
Step by Step Solution
- Step 1: Write the proportion equation
305,147.28 : 421,146.84 = 169,211.46 : x - Step 2: Convert to fraction form
305,147.28/421,146.84 = 169,211.46/x - Step 3: Cross multiply
305,147.28x = 421,146.84 × 169,211.46 - Step 4: Simplify right side
305,147.28x = 71,262,871,670.79 - Step 5: Solve for x
x = 71,262,871,670.79/305,147.28 - Step 6: Final answer
x = 233,535.99
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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.