Finding the Fourth Proportional to 382.02, 527.26 and 257.68
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Solution
The fourth proportional to 382.02, 527.26 and 257.68 is: 355.65
Step by Step Solution
- Step 1: Write the proportion equation
382.02 : 527.26 = 257.68 : x - Step 2: Convert to fraction form
382.02/527.26 = 257.68/x - Step 3: Cross multiply
382.02x = 527.26 × 257.68 - Step 4: Simplify right side
382.02x = 135,864.36 - Step 5: Solve for x
x = 135,864.36/382.02 - Step 6: Final answer
x = 355.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.