Finding the Fourth Proportional to 212,655.46, 318,972.60 and 79,525.94
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Solution
The fourth proportional to 212,655.46, 318,972.60 and 79,525.94 is: 119,284.95
Step by Step Solution
- Step 1: Write the proportion equation
212,655.46 : 318,972.60 = 79,525.94 : x - Step 2: Convert to fraction form
212,655.46/318,972.60 = 79,525.94/x - Step 3: Cross multiply
212,655.46x = 318,972.60 × 79,525.94 - Step 4: Simplify right side
212,655.46x = 25,366,595,849.24 - Step 5: Solve for x
x = 25,366,595,849.24/212,655.46 - Step 6: Final answer
x = 119,284.95
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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.