Finding the Fourth Proportional to 178.97, 247.14 and 135.23
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Solution
The fourth proportional to 178.97, 247.14 and 135.23 is: 186.74
Step by Step Solution
- Step 1: Write the proportion equation
178.97 : 247.14 = 135.23 : x - Step 2: Convert to fraction form
178.97/247.14 = 135.23/x - Step 3: Cross multiply
178.97x = 247.14 × 135.23 - Step 4: Simplify right side
178.97x = 33,420.74 - Step 5: Solve for x
x = 33,420.74/178.97 - Step 6: Final answer
x = 186.74
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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.