Finding the Fourth Proportional to 212,660.80, 318,699.60 and 173,294.80
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Solution
The fourth proportional to 212,660.80, 318,699.60 and 173,294.80 is: 259,704.58
Step by Step Solution
- Step 1: Write the proportion equation
212,660.80 : 318,699.60 = 173,294.80 : x - Step 2: Convert to fraction form
212,660.80/318,699.60 = 173,294.80/x - Step 3: Cross multiply
212,660.80x = 318,699.60 × 173,294.80 - Step 4: Simplify right side
212,660.80x = 55,228,983,442.08 - Step 5: Solve for x
x = 55,228,983,442.08/212,660.80 - Step 6: Final answer
x = 259,704.58
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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.