Finding the Fourth Proportional to 358.62, 537.91 and 115.14
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Solution
The fourth proportional to 358.62, 537.91 and 115.14 is: 172.70
Step by Step Solution
- Step 1: Write the proportion equation
358.62 : 537.91 = 115.14 : x - Step 2: Convert to fraction form
358.62/537.91 = 115.14/x - Step 3: Cross multiply
358.62x = 537.91 × 115.14 - Step 4: Simplify right side
358.62x = 61,934.96 - Step 5: Solve for x
x = 61,934.96/358.62 - Step 6: Final answer
x = 172.70
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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.