Finding the Fourth Proportional to 453.24, 624.44 and 313.11
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Solution
The fourth proportional to 453.24, 624.44 and 313.11 is: 431.38
Step by Step Solution
- Step 1: Write the proportion equation
453.24 : 624.44 = 313.11 : x - Step 2: Convert to fraction form
453.24/624.44 = 313.11/x - Step 3: Cross multiply
453.24x = 624.44 × 313.11 - Step 4: Simplify right side
453.24x = 195,519.19 - Step 5: Solve for x
x = 195,519.19/453.24 - Step 6: Final answer
x = 431.38
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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.