Finding the Fourth Proportional to 285.99, 428.97 and 93.62
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Solution
The fourth proportional to 285.99, 428.97 and 93.62 is: 140.42
Step by Step Solution
- Step 1: Write the proportion equation
285.99 : 428.97 = 93.62 : x - Step 2: Convert to fraction form
285.99/428.97 = 93.62/x - Step 3: Cross multiply
285.99x = 428.97 × 93.62 - Step 4: Simplify right side
285.99x = 40,158.03 - Step 5: Solve for x
x = 40,158.03/285.99 - Step 6: Final answer
x = 140.42
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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.