Finding the Fourth Proportional to 358.21, 536.91 and 213.63
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Solution
The fourth proportional to 358.21, 536.91 and 213.63 is: 320.20
Step by Step Solution
- Step 1: Write the proportion equation
358.21 : 536.91 = 213.63 : x - Step 2: Convert to fraction form
358.21/536.91 = 213.63/x - Step 3: Cross multiply
358.21x = 536.91 × 213.63 - Step 4: Simplify right side
358.21x = 114,700.08 - Step 5: Solve for x
x = 114,700.08/358.21 - Step 6: Final answer
x = 320.20
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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.