Finding the Fourth Proportional to 358.13, 536.97 and 221.24
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Solution
The fourth proportional to 358.13, 536.97 and 221.24 is: 331.72
Step by Step Solution
- Step 1: Write the proportion equation
358.13 : 536.97 = 221.24 : x - Step 2: Convert to fraction form
358.13/536.97 = 221.24/x - Step 3: Cross multiply
358.13x = 536.97 × 221.24 - Step 4: Simplify right side
358.13x = 118,799.24 - Step 5: Solve for x
x = 118,799.24/358.13 - Step 6: Final answer
x = 331.72
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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.