Finding the Fourth Proportional to 392.21, 541.08 and 252.28
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Solution
The fourth proportional to 392.21, 541.08 and 252.28 is: 348.03
Step by Step Solution
- Step 1: Write the proportion equation
392.21 : 541.08 = 252.28 : x - Step 2: Convert to fraction form
392.21/541.08 = 252.28/x - Step 3: Cross multiply
392.21x = 541.08 × 252.28 - Step 4: Simplify right side
392.21x = 136,502.06 - Step 5: Solve for x
x = 136,502.06/392.21 - Step 6: Final answer
x = 348.03
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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.