Finding the Fourth Proportional to 305.31, 457.21 and 174.99
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Solution
The fourth proportional to 305.31, 457.21 and 174.99 is: 262.05
Step by Step Solution
- Step 1: Write the proportion equation
305.31 : 457.21 = 174.99 : x - Step 2: Convert to fraction form
305.31/457.21 = 174.99/x - Step 3: Cross multiply
305.31x = 457.21 × 174.99 - Step 4: Simplify right side
305.31x = 80,007.18 - Step 5: Solve for x
x = 80,007.18/305.31 - Step 6: Final answer
x = 262.05
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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.