Finding the Fourth Proportional to 331,431.75, 457,375.82 and 180,528.75
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Solution
The fourth proportional to 331,431.75, 457,375.82 and 180,528.75 is: 249,129.68
Step by Step Solution
- Step 1: Write the proportion equation
331,431.75 : 457,375.82 = 180,528.75 : x - Step 2: Convert to fraction form
331,431.75/457,375.82 = 180,528.75/x - Step 3: Cross multiply
331,431.75x = 457,375.82 × 180,528.75 - Step 4: Simplify right side
331,431.75x = 82,569,484,162.18 - Step 5: Solve for x
x = 82,569,484,162.18/331,431.75 - Step 6: Final answer
x = 249,129.68
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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.