Finding the Fourth Proportional to 202.21, 278.96 and 119.26
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Solution
The fourth proportional to 202.21, 278.96 and 119.26 is: 164.52
Step by Step Solution
- Step 1: Write the proportion equation
202.21 : 278.96 = 119.26 : x - Step 2: Convert to fraction form
202.21/278.96 = 119.26/x - Step 3: Cross multiply
202.21x = 278.96 × 119.26 - Step 4: Simplify right side
202.21x = 33,268.17 - Step 5: Solve for x
x = 33,268.17/202.21 - Step 6: Final answer
x = 164.52
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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.