Finding the Fourth Proportional to 212,656.46, 318,974.10 and 79,526.94
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Solution
The fourth proportional to 212,656.46, 318,974.10 and 79,526.94 is: 119,286.45
Step by Step Solution
- Step 1: Write the proportion equation
212,656.46 : 318,974.10 = 79,526.94 : x - Step 2: Convert to fraction form
212,656.46/318,974.10 = 79,526.94/x - Step 3: Cross multiply
212,656.46x = 318,974.10 × 79,526.94 - Step 4: Simplify right side
212,656.46x = 25,367,034,112.25 - Step 5: Solve for x
x = 25,367,034,112.25/212,656.46 - Step 6: Final answer
x = 119,286.45
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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.