Finding the Fourth Proportional to 178.97, 247.07 and 171.23
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Solution
The fourth proportional to 178.97, 247.07 and 171.23 is: 236.39
Step by Step Solution
- Step 1: Write the proportion equation
178.97 : 247.07 = 171.23 : x - Step 2: Convert to fraction form
178.97/247.07 = 171.23/x - Step 3: Cross multiply
178.97x = 247.07 × 171.23 - Step 4: Simplify right side
178.97x = 42,304.99 - Step 5: Solve for x
x = 42,304.99/178.97 - Step 6: Final answer
x = 236.39
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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.