Finding the Fourth Proportional to 392.06, 541.08 and 217.44
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Solution
The fourth proportional to 392.06, 541.08 and 217.44 is: 300.09
Step by Step Solution
- Step 1: Write the proportion equation
392.06 : 541.08 = 217.44 : x - Step 2: Convert to fraction form
392.06/541.08 = 217.44/x - Step 3: Cross multiply
392.06x = 541.08 × 217.44 - Step 4: Simplify right side
392.06x = 117,652.44 - Step 5: Solve for x
x = 117,652.44/392.06 - Step 6: Final answer
x = 300.09
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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.