Finding the Fourth Proportional to 315.99, 473.68 and 224.56
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Solution
The fourth proportional to 315.99, 473.68 and 224.56 is: 336.62
Step by Step Solution
- Step 1: Write the proportion equation
315.99 : 473.68 = 224.56 : x - Step 2: Convert to fraction form
315.99/473.68 = 224.56/x - Step 3: Cross multiply
315.99x = 473.68 × 224.56 - Step 4: Simplify right side
315.99x = 106,369.58 - Step 5: Solve for x
x = 106,369.58/315.99 - Step 6: Final answer
x = 336.62
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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.