Finding the Fourth Proportional to 201.99, 278.78 and 119.08
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Solution
The fourth proportional to 201.99, 278.78 and 119.08 is: 164.35
Step by Step Solution
- Step 1: Write the proportion equation
201.99 : 278.78 = 119.08 : x - Step 2: Convert to fraction form
201.99/278.78 = 119.08/x - Step 3: Cross multiply
201.99x = 278.78 × 119.08 - Step 4: Simplify right side
201.99x = 33,197.12 - Step 5: Solve for x
x = 33,197.12/201.99 - Step 6: Final answer
x = 164.35
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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.