Finding the Fourth Proportional to 178.69, 267.70 and 149.99
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Solution
The fourth proportional to 178.69, 267.70 and 149.99 is: 224.70
Step by Step Solution
- Step 1: Write the proportion equation
178.69 : 267.70 = 149.99 : x - Step 2: Convert to fraction form
178.69/267.70 = 149.99/x - Step 3: Cross multiply
178.69x = 267.70 × 149.99 - Step 4: Simplify right side
178.69x = 40,152.32 - Step 5: Solve for x
x = 40,152.32/178.69 - Step 6: Final answer
x = 224.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.