Finding the Fourth Proportional to 347.63, 479.77 and 254.68
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Solution
The fourth proportional to 347.63, 479.77 and 254.68 is: 351.49
Step by Step Solution
- Step 1: Write the proportion equation
347.63 : 479.77 = 254.68 : x - Step 2: Convert to fraction form
347.63/479.77 = 254.68/x - Step 3: Cross multiply
347.63x = 479.77 × 254.68 - Step 4: Simplify right side
347.63x = 122,185.99 - Step 5: Solve for x
x = 122,185.99/347.63 - Step 6: Final answer
x = 351.49
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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.