Finding the Fourth Proportional to 178.76, 266.97 and 170.05
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Solution
The fourth proportional to 178.76, 266.97 and 170.05 is: 253.97
Step by Step Solution
- Step 1: Write the proportion equation
178.76 : 266.97 = 170.05 : x - Step 2: Convert to fraction form
178.76/266.97 = 170.05/x - Step 3: Cross multiply
178.76x = 266.97 × 170.05 - Step 4: Simplify right side
178.76x = 45,398.24 - Step 5: Solve for x
x = 45,398.24/178.76 - Step 6: Final answer
x = 253.97
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.