Finding the Fourth Proportional to 358.99, 494.80 and 299.75
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Solution
The fourth proportional to 358.99, 494.80 and 299.75 is: 413.14
Step by Step Solution
- Step 1: Write the proportion equation
358.99 : 494.80 = 299.75 : x - Step 2: Convert to fraction form
358.99/494.80 = 299.75/x - Step 3: Cross multiply
358.99x = 494.80 × 299.75 - Step 4: Simplify right side
358.99x = 148,313.08 - Step 5: Solve for x
x = 148,313.08/358.99 - Step 6: Final answer
x = 413.14
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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.