Finding the Fourth Proportional to 306,042.15, 422,304.61 and 176,961.09
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Solution
The fourth proportional to 306,042.15, 422,304.61 and 176,961.09 is: 244,186.90
Step by Step Solution
- Step 1: Write the proportion equation
306,042.15 : 422,304.61 = 176,961.09 : x - Step 2: Convert to fraction form
306,042.15/422,304.61 = 176,961.09/x - Step 3: Cross multiply
306,042.15x = 422,304.61 × 176,961.09 - Step 4: Simplify right side
306,042.15x = 74,731,484,097.62 - Step 5: Solve for x
x = 74,731,484,097.62/306,042.15 - Step 6: Final answer
x = 244,186.90
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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.