Finding the Fourth Proportional to 202.60, 278.93 and 171.43
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Solution
The fourth proportional to 202.60, 278.93 and 171.43 is: 236.02
Step by Step Solution
- Step 1: Write the proportion equation
202.60 : 278.93 = 171.43 : x - Step 2: Convert to fraction form
202.60/278.93 = 171.43/x - Step 3: Cross multiply
202.60x = 278.93 × 171.43 - Step 4: Simplify right side
202.60x = 47,816.97 - Step 5: Solve for x
x = 47,816.97/202.60 - Step 6: Final answer
x = 236.02
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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.