Finding the Fourth Proportional to 201.69, 278.64 and 176.99
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Solution
The fourth proportional to 201.69, 278.64 and 176.99 is: 244.51
Step by Step Solution
- Step 1: Write the proportion equation
201.69 : 278.64 = 176.99 : x - Step 2: Convert to fraction form
201.69/278.64 = 176.99/x - Step 3: Cross multiply
201.69x = 278.64 × 176.99 - Step 4: Simplify right side
201.69x = 49,315.10 - Step 5: Solve for x
x = 49,315.10/201.69 - Step 6: Final answer
x = 244.51
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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.