Finding the Fourth Proportional to 201.64, 278.30 and 126.99
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Solution
The fourth proportional to 201.64, 278.30 and 126.99 is: 175.27
Step by Step Solution
- Step 1: Write the proportion equation
201.64 : 278.30 = 126.99 : x - Step 2: Convert to fraction form
201.64/278.30 = 126.99/x - Step 3: Cross multiply
201.64x = 278.30 × 126.99 - Step 4: Simplify right side
201.64x = 35,341.32 - Step 5: Solve for x
x = 35,341.32/201.64 - Step 6: Final answer
x = 175.27
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.