Finding the Fourth Proportional to 306.18, 458.97 and 275.81
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Solution
The fourth proportional to 306.18, 458.97 and 275.81 is: 413.43
Step by Step Solution
- Step 1: Write the proportion equation
306.18 : 458.97 = 275.81 : x - Step 2: Convert to fraction form
306.18/458.97 = 275.81/x - Step 3: Cross multiply
306.18x = 458.97 × 275.81 - Step 4: Simplify right side
306.18x = 126,585.19 - Step 5: Solve for x
x = 126,585.19/306.18 - Step 6: Final answer
x = 413.43
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.