Finding the Fourth Proportional to 305,830.20, 422,045.67 and 171,694.20
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Solution
The fourth proportional to 305,830.20, 422,045.67 and 171,694.20 is: 236,937.99
Step by Step Solution
- Step 1: Write the proportion equation
305,830.20 : 422,045.67 = 171,694.20 : x - Step 2: Convert to fraction form
305,830.20/422,045.67 = 171,694.20/x - Step 3: Cross multiply
305,830.20x = 422,045.67 × 171,694.20 - Step 4: Simplify right side
305,830.20x = 72,462,793,674.11 - Step 5: Solve for x
x = 72,462,793,674.11/305,830.20 - Step 6: Final answer
x = 236,937.99
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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.