Finding the Fourth Proportional to 212,534.12, 318,882.18 and 79,473.80
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Solution
The fourth proportional to 212,534.12, 318,882.18 and 79,473.80 is: 119,240.99
Step by Step Solution
- Step 1: Write the proportion equation
212,534.12 : 318,882.18 = 79,473.80 : x - Step 2: Convert to fraction form
212,534.12/318,882.18 = 79,473.80/x - Step 3: Cross multiply
212,534.12x = 318,882.18 × 79,473.80 - Step 4: Simplify right side
212,534.12x = 25,342,778,596.88 - Step 5: Solve for x
x = 25,342,778,596.88/212,534.12 - Step 6: Final answer
x = 119,240.99
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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.