Finding the Fourth Proportional to 305.75, 421.99 and 295.63
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Solution
The fourth proportional to 305.75, 421.99 and 295.63 is: 408.02
Step by Step Solution
- Step 1: Write the proportion equation
305.75 : 421.99 = 295.63 : x - Step 2: Convert to fraction form
305.75/421.99 = 295.63/x - Step 3: Cross multiply
305.75x = 421.99 × 295.63 - Step 4: Simplify right side
305.75x = 124,751.85 - Step 5: Solve for x
x = 124,751.85/305.75 - Step 6: Final answer
x = 408.02
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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.