Finding the Fourth Proportional to 143.08, 214.08 and 94.75
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Solution
The fourth proportional to 143.08, 214.08 and 94.75 is: 141.77
Step by Step Solution
- Step 1: Write the proportion equation
143.08 : 214.08 = 94.75 : x - Step 2: Convert to fraction form
143.08/214.08 = 94.75/x - Step 3: Cross multiply
143.08x = 214.08 × 94.75 - Step 4: Simplify right side
143.08x = 20,284.08 - Step 5: Solve for x
x = 20,284.08/143.08 - Step 6: Final answer
x = 141.77
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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.