Finding the Fourth Proportional to 231,921.70, 347,623.35 and 132,129.70
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Solution
The fourth proportional to 231,921.70, 347,623.35 and 132,129.70 is: 198,046.88
Step by Step Solution
- Step 1: Write the proportion equation
231,921.70 : 347,623.35 = 132,129.70 : x - Step 2: Convert to fraction form
231,921.70/347,623.35 = 132,129.70/x - Step 3: Cross multiply
231,921.70x = 347,623.35 × 132,129.70 - Step 4: Simplify right side
231,921.70x = 45,931,368,948.50 - Step 5: Solve for x
x = 45,931,368,948.50/231,921.70 - Step 6: Final answer
x = 198,046.88
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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.