Finding the Fourth Proportional to 402.44, 554.99 and 254.81
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Solution
The fourth proportional to 402.44, 554.99 and 254.81 is: 351.39
Step by Step Solution
- Step 1: Write the proportion equation
402.44 : 554.99 = 254.81 : x - Step 2: Convert to fraction form
402.44/554.99 = 254.81/x - Step 3: Cross multiply
402.44x = 554.99 × 254.81 - Step 4: Simplify right side
402.44x = 141,412.95 - Step 5: Solve for x
x = 141,412.95/402.44 - Step 6: Final answer
x = 351.39
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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.