Finding the Fourth Proportional to 218,557.44, 327,939.84 and 129,985.56
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Solution
The fourth proportional to 218,557.44, 327,939.84 and 129,985.56 is: 195,040.00
Step by Step Solution
- Step 1: Write the proportion equation
218,557.44 : 327,939.84 = 129,985.56 : x - Step 2: Convert to fraction form
218,557.44/327,939.84 = 129,985.56/x - Step 3: Cross multiply
218,557.44x = 327,939.84 × 129,985.56 - Step 4: Simplify right side
218,557.44x = 42,627,443,748.71 - Step 5: Solve for x
x = 42,627,443,748.71/218,557.44 - Step 6: Final answer
x = 195,040.00
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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.