Finding the Fourth Proportional to 178.76, 246.08 and 154.06
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Solution
The fourth proportional to 178.76, 246.08 and 154.06 is: 212.08
Step by Step Solution
- Step 1: Write the proportion equation
178.76 : 246.08 = 154.06 : x - Step 2: Convert to fraction form
178.76/246.08 = 154.06/x - Step 3: Cross multiply
178.76x = 246.08 × 154.06 - Step 4: Simplify right side
178.76x = 37,911.08 - Step 5: Solve for x
x = 37,911.08/178.76 - Step 6: Final answer
x = 212.08
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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.