Finding the Fourth Proportional to 221,580.09, 305,776.60 and 126,084.73
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Solution
The fourth proportional to 221,580.09, 305,776.60 and 126,084.73 is: 173,994.69
Step by Step Solution
- Step 1: Write the proportion equation
221,580.09 : 305,776.60 = 126,084.73 : x - Step 2: Convert to fraction form
221,580.09/305,776.60 = 126,084.73/x - Step 3: Cross multiply
221,580.09x = 305,776.60 × 126,084.73 - Step 4: Simplify right side
221,580.09x = 38,553,760,051.32 - Step 5: Solve for x
x = 38,553,760,051.32/221,580.09 - Step 6: Final answer
x = 173,994.69
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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.