Finding the Fourth Proportional to 201.30, 291.08 and 201.30
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Solution
The fourth proportional to 201.30, 291.08 and 201.30 is: 291.08
Step by Step Solution
- Step 1: Write the proportion equation
201.30 : 291.08 = 201.30 : x - Step 2: Convert to fraction form
201.30/291.08 = 201.30/x - Step 3: Cross multiply
201.30x = 291.08 × 201.30 - Step 4: Simplify right side
201.30x = 58,593.40 - Step 5: Solve for x
x = 58,593.40/201.30 - Step 6: Final answer
x = 291.08
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Why These Related Problems?
These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.