Finding the Fourth Proportional to 284.99, 393.44 and 222.68
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Solution
The fourth proportional to 284.99, 393.44 and 222.68 is: 307.41
Step by Step Solution
- Step 1: Write the proportion equation
284.99 : 393.44 = 222.68 : x - Step 2: Convert to fraction form
284.99/393.44 = 222.68/x - Step 3: Cross multiply
284.99x = 393.44 × 222.68 - Step 4: Simplify right side
284.99x = 87,610.11 - Step 5: Solve for x
x = 87,610.11/284.99 - Step 6: Final answer
x = 307.41
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.