Finding the Fourth Proportional to 358.48, 494.47 and 210.99
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Solution
The fourth proportional to 358.48, 494.47 and 210.99 is: 291.03
Step by Step Solution
- Step 1: Write the proportion equation
358.48 : 494.47 = 210.99 : x - Step 2: Convert to fraction form
358.48/494.47 = 210.99/x - Step 3: Cross multiply
358.48x = 494.47 × 210.99 - Step 4: Simplify right side
358.48x = 104,328.23 - Step 5: Solve for x
x = 104,328.23/358.48 - Step 6: Final answer
x = 291.03
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.