Finding the Fourth Proportional to 224.24, 336.36 and 128.08
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Solution
The fourth proportional to 224.24, 336.36 and 128.08 is: 192.12
Step by Step Solution
- Step 1: Write the proportion equation
224.24 : 336.36 = 128.08 : x - Step 2: Convert to fraction form
224.24/336.36 = 128.08/x - Step 3: Cross multiply
224.24x = 336.36 × 128.08 - Step 4: Simplify right side
224.24x = 43,080.99 - Step 5: Solve for x
x = 43,080.99/224.24 - Step 6: Final answer
x = 192.12
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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.