Finding the Fourth Proportional to 305,830.70, 422,046.36 and 171,694.70
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Solution
The fourth proportional to 305,830.70, 422,046.36 and 171,694.70 is: 236,938.68
Step by Step Solution
- Step 1: Write the proportion equation
305,830.70 : 422,046.36 = 171,694.70 : x - Step 2: Convert to fraction form
305,830.70/422,046.36 = 171,694.70/x - Step 3: Cross multiply
305,830.70x = 422,046.36 × 171,694.70 - Step 4: Simplify right side
305,830.70x = 72,463,123,166.29 - Step 5: Solve for x
x = 72,463,123,166.29/305,830.70 - Step 6: Final answer
x = 236,938.68
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1.5x scale
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.