Finding the Fourth Proportional to 303.84, 455.36 and 149.68
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Solution
The fourth proportional to 303.84, 455.36 and 149.68 is: 224.32
Step by Step Solution
- Step 1: Write the proportion equation
303.84 : 455.36 = 149.68 : x - Step 2: Convert to fraction form
303.84/455.36 = 149.68/x - Step 3: Cross multiply
303.84x = 455.36 × 149.68 - Step 4: Simplify right side
303.84x = 68,158.28 - Step 5: Solve for x
x = 68,158.28/303.84 - Step 6: Final answer
x = 224.32
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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.