Finding the Fourth Proportional to 401.63, 554.49 and 283.99
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Solution
The fourth proportional to 401.63, 554.49 and 283.99 is: 392.08
Step by Step Solution
- Step 1: Write the proportion equation
401.63 : 554.49 = 283.99 : x - Step 2: Convert to fraction form
401.63/554.49 = 283.99/x - Step 3: Cross multiply
401.63x = 554.49 × 283.99 - Step 4: Simplify right side
401.63x = 157,469.62 - Step 5: Solve for x
x = 157,469.62/401.63 - Step 6: Final answer
x = 392.08
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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.