Finding the Fourth Proportional to 331,434.75, 457,379.96 and 180,531.75
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Solution
The fourth proportional to 331,434.75, 457,379.96 and 180,531.75 is: 249,133.82
Step by Step Solution
- Step 1: Write the proportion equation
331,434.75 : 457,379.96 = 180,531.75 : x - Step 2: Convert to fraction form
331,434.75/457,379.96 = 180,531.75/x - Step 3: Cross multiply
331,434.75x = 457,379.96 × 180,531.75 - Step 4: Simplify right side
331,434.75x = 82,571,604,593.73 - Step 5: Solve for x
x = 82,571,604,593.73/331,434.75 - Step 6: Final answer
x = 249,133.82
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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.