Finding the Fourth Proportional to 358.76, 494.99 and 216.91
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Solution
The fourth proportional to 358.76, 494.99 and 216.91 is: 299.27
Step by Step Solution
- Step 1: Write the proportion equation
358.76 : 494.99 = 216.91 : x - Step 2: Convert to fraction form
358.76/494.99 = 216.91/x - Step 3: Cross multiply
358.76x = 494.99 × 216.91 - Step 4: Simplify right side
358.76x = 107,368.63 - Step 5: Solve for x
x = 107,368.63/358.76 - Step 6: Final answer
x = 299.27
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.