Finding the Fourth Proportional to 358.12, 536.99 and 211.92
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Solution
The fourth proportional to 358.12, 536.99 and 211.92 is: 317.76
Step by Step Solution
- Step 1: Write the proportion equation
358.12 : 536.99 = 211.92 : x - Step 2: Convert to fraction form
358.12/536.99 = 211.92/x - Step 3: Cross multiply
358.12x = 536.99 × 211.92 - Step 4: Simplify right side
358.12x = 113,795.18 - Step 5: Solve for x
x = 113,795.18/358.12 - Step 6: Final answer
x = 317.76
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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.