Finding the Fourth Proportional to 305,372.19, 457,760.43 and 145,405.14
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Solution
The fourth proportional to 305,372.19, 457,760.43 and 145,405.14 is: 217,965.88
Step by Step Solution
- Step 1: Write the proportion equation
305,372.19 : 457,760.43 = 145,405.14 : x - Step 2: Convert to fraction form
305,372.19/457,760.43 = 145,405.14/x - Step 3: Cross multiply
305,372.19x = 457,760.43 × 145,405.14 - Step 4: Simplify right side
305,372.19x = 66,560,719,410.61 - Step 5: Solve for x
x = 66,560,719,410.61/305,372.19 - Step 6: Final answer
x = 217,965.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.