Finding the Fourth Proportional to 297.14, 445.62 and 142.99
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Solution
The fourth proportional to 297.14, 445.62 and 142.99 is: 214.44
Step by Step Solution
- Step 1: Write the proportion equation
297.14 : 445.62 = 142.99 : x - Step 2: Convert to fraction form
297.14/445.62 = 142.99/x - Step 3: Cross multiply
297.14x = 445.62 × 142.99 - Step 4: Simplify right side
297.14x = 63,719.20 - Step 5: Solve for x
x = 63,719.20/297.14 - Step 6: Final answer
x = 214.44
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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.