Finding the Fourth Proportional to 356.36, 491.76 and 201.08
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Solution
The fourth proportional to 356.36, 491.76 and 201.08 is: 277.48
Step by Step Solution
- Step 1: Write the proportion equation
356.36 : 491.76 = 201.08 : x - Step 2: Convert to fraction form
356.36/491.76 = 201.08/x - Step 3: Cross multiply
356.36x = 491.76 × 201.08 - Step 4: Simplify right side
356.36x = 98,883.10 - Step 5: Solve for x
x = 98,883.10/356.36 - Step 6: Final answer
x = 277.48
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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.