Finding the Fourth Proportional to 358.54, 537.74 and 115.08
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Solution
The fourth proportional to 358.54, 537.74 and 115.08 is: 172.60
Step by Step Solution
- Step 1: Write the proportion equation
358.54 : 537.74 = 115.08 : x - Step 2: Convert to fraction form
358.54/537.74 = 115.08/x - Step 3: Cross multiply
358.54x = 537.74 × 115.08 - Step 4: Simplify right side
358.54x = 61,883.12 - Step 5: Solve for x
x = 61,883.12/358.54 - Step 6: Final answer
x = 172.60
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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.