Finding the Fourth Proportional to 284.29, 392.19 and 173.75
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Solution
The fourth proportional to 284.29, 392.19 and 173.75 is: 239.70
Step by Step Solution
- Step 1: Write the proportion equation
284.29 : 392.19 = 173.75 : x - Step 2: Convert to fraction form
284.29/392.19 = 173.75/x - Step 3: Cross multiply
284.29x = 392.19 × 173.75 - Step 4: Simplify right side
284.29x = 68,143.99 - Step 5: Solve for x
x = 68,143.99/284.29 - Step 6: Final answer
x = 239.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.