Finding the Fourth Proportional to 201.29, 302.08 and 79.63
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Solution
The fourth proportional to 201.29, 302.08 and 79.63 is: 119.51
Step by Step Solution
- Step 1: Write the proportion equation
201.29 : 302.08 = 79.63 : x - Step 2: Convert to fraction form
201.29/302.08 = 79.63/x - Step 3: Cross multiply
201.29x = 302.08 × 79.63 - Step 4: Simplify right side
201.29x = 24,055.52 - Step 5: Solve for x
x = 24,055.52/201.29 - Step 6: Final answer
x = 119.51
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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.