Finding the Fourth Proportional to 358.26, 537.44 and 138.84
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Solution
The fourth proportional to 358.26, 537.44 and 138.84 is: 208.28
Step by Step Solution
- Step 1: Write the proportion equation
358.26 : 537.44 = 138.84 : x - Step 2: Convert to fraction form
358.26/537.44 = 138.84/x - Step 3: Cross multiply
358.26x = 537.44 × 138.84 - Step 4: Simplify right side
358.26x = 74,618.17 - Step 5: Solve for x
x = 74,618.17/358.26 - Step 6: Final answer
x = 208.28
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.