Finding the Fourth Proportional to 267.28, 400.97 and 84.70
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Solution
The fourth proportional to 267.28, 400.97 and 84.70 is: 127.06
Step by Step Solution
- Step 1: Write the proportion equation
267.28 : 400.97 = 84.70 : x - Step 2: Convert to fraction form
267.28/400.97 = 84.70/x - Step 3: Cross multiply
267.28x = 400.97 × 84.70 - Step 4: Simplify right side
267.28x = 33,960.14 - Step 5: Solve for x
x = 33,960.14/267.28 - Step 6: Final answer
x = 127.06
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.