Finding the Fourth Proportional to 239.11, 358.26 and 84.95
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Solution
The fourth proportional to 239.11, 358.26 and 84.95 is: 127.28
Step by Step Solution
- Step 1: Write the proportion equation
239.11 : 358.26 = 84.95 : x - Step 2: Convert to fraction form
239.11/358.26 = 84.95/x - Step 3: Cross multiply
239.11x = 358.26 × 84.95 - Step 4: Simplify right side
239.11x = 30,434.19 - Step 5: Solve for x
x = 30,434.19/239.11 - Step 6: Final answer
x = 127.28
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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.