Finding the Fourth Proportional to 212,431.24, 318,843.78 and 107,324.02
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Solution
The fourth proportional to 212,431.24, 318,843.78 and 107,324.02 is: 161,085.52
Step by Step Solution
- Step 1: Write the proportion equation
212,431.24 : 318,843.78 = 107,324.02 : x - Step 2: Convert to fraction form
212,431.24/318,843.78 = 107,324.02/x - Step 3: Cross multiply
212,431.24x = 318,843.78 × 107,324.02 - Step 4: Simplify right side
212,431.24x = 34,219,596,221.60 - Step 5: Solve for x
x = 34,219,596,221.60/212,431.24 - Step 6: Final answer
x = 161,085.52
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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.