Finding the Fourth Proportional to 286,265.70, 428,742.45 and 279,704.70
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Solution
The fourth proportional to 286,265.70, 428,742.45 and 279,704.70 is: 418,915.99
Step by Step Solution
- Step 1: Write the proportion equation
286,265.70 : 428,742.45 = 279,704.70 : x - Step 2: Convert to fraction form
286,265.70/428,742.45 = 279,704.70/x - Step 3: Cross multiply
286,265.70x = 428,742.45 × 279,704.70 - Step 4: Simplify right side
286,265.70x = 119,921,278,354.52 - Step 5: Solve for x
x = 119,921,278,354.52/286,265.70 - Step 6: Final answer
x = 418,915.99
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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.