Finding the Fourth Proportional to 218,425.96, 327,638.70 and 68,679.36
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Solution
The fourth proportional to 218,425.96, 327,638.70 and 68,679.36 is: 103,018.96
Step by Step Solution
- Step 1: Write the proportion equation
218,425.96 : 327,638.70 = 68,679.36 : x - Step 2: Convert to fraction form
218,425.96/327,638.70 = 68,679.36/x - Step 3: Cross multiply
218,425.96x = 327,638.70 × 68,679.36 - Step 4: Simplify right side
218,425.96x = 22,502,016,227.23 - Step 5: Solve for x
x = 22,502,016,227.23/218,425.96 - Step 6: Final answer
x = 103,018.96
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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.