Finding the Fourth Proportional to 218,135.40, 327,203.18 and 68,387.44
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Solution
The fourth proportional to 218,135.40, 327,203.18 and 68,387.44 is: 102,581.19
Step by Step Solution
- Step 1: Write the proportion equation
218,135.40 : 327,203.18 = 68,387.44 : x - Step 2: Convert to fraction form
218,135.40/327,203.18 = 68,387.44/x - Step 3: Cross multiply
218,135.40x = 327,203.18 × 68,387.44 - Step 4: Simplify right side
218,135.40x = 22,376,587,840.06 - Step 5: Solve for x
x = 22,376,587,840.06/218,135.40 - Step 6: Final answer
x = 102,581.19
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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.