Finding the Fourth Proportional to 201.90, 302.84 and 156.26
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Solution
The fourth proportional to 201.90, 302.84 and 156.26 is: 234.37
Step by Step Solution
- Step 1: Write the proportion equation
201.90 : 302.84 = 156.26 : x - Step 2: Convert to fraction form
201.90/302.84 = 156.26/x - Step 3: Cross multiply
201.90x = 302.84 × 156.26 - Step 4: Simplify right side
201.90x = 47,319.48 - Step 5: Solve for x
x = 47,319.48/201.90 - Step 6: Final answer
x = 234.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.