Finding the Fourth Proportional to 358.64, 537.62 and 115.00
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Solution
The fourth proportional to 358.64, 537.62 and 115.00 is: 172.39
Step by Step Solution
- Step 1: Write the proportion equation
358.64 : 537.62 = 115.00 : x - Step 2: Convert to fraction form
358.64/537.62 = 115.00/x - Step 3: Cross multiply
358.64x = 537.62 × 115.00 - Step 4: Simplify right side
358.64x = 61,828.05 - Step 5: Solve for x
x = 61,828.05/358.64 - Step 6: Final answer
x = 172.39
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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.