Finding the Fourth Proportional to 305,878.41, 422,179.68 and 169,959.06
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Solution
The fourth proportional to 305,878.41, 422,179.68 and 169,959.06 is: 234,580.99
Step by Step Solution
- Step 1: Write the proportion equation
305,878.41 : 422,179.68 = 169,959.06 : x - Step 2: Convert to fraction form
305,878.41/422,179.68 = 169,959.06/x - Step 3: Cross multiply
305,878.41x = 422,179.68 × 169,959.06 - Step 4: Simplify right side
305,878.41x = 71,753,261,563.90 - Step 5: Solve for x
x = 71,753,261,563.90/305,878.41 - Step 6: Final answer
x = 234,580.99
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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.