Finding the Fourth Proportional to 220,644.09, 330,675.24 and 87,451.74
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Solution
The fourth proportional to 220,644.09, 330,675.24 and 87,451.74 is: 131,062.31
Step by Step Solution
- Step 1: Write the proportion equation
220,644.09 : 330,675.24 = 87,451.74 : x - Step 2: Convert to fraction form
220,644.09/330,675.24 = 87,451.74/x - Step 3: Cross multiply
220,644.09x = 330,675.24 × 87,451.74 - Step 4: Simplify right side
220,644.09x = 28,918,125,112.92 - Step 5: Solve for x
x = 28,918,125,112.92/220,644.09 - Step 6: Final answer
x = 131,062.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.