Finding the Fourth Proportional to 375.99, 518.67 and 257.97
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Solution
The fourth proportional to 375.99, 518.67 and 257.97 is: 355.86
Step by Step Solution
- Step 1: Write the proportion equation
375.99 : 518.67 = 257.97 : x - Step 2: Convert to fraction form
375.99/518.67 = 257.97/x - Step 3: Cross multiply
375.99x = 518.67 × 257.97 - Step 4: Simplify right side
375.99x = 133,801.30 - Step 5: Solve for x
x = 133,801.30/375.99 - Step 6: Final answer
x = 355.86
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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.