Finding the Fourth Proportional to 438.10, 604.62 and 263.44
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Solution
The fourth proportional to 438.10, 604.62 and 263.44 is: 363.57
Step by Step Solution
- Step 1: Write the proportion equation
438.10 : 604.62 = 263.44 : x - Step 2: Convert to fraction form
438.10/604.62 = 263.44/x - Step 3: Cross multiply
438.10x = 604.62 × 263.44 - Step 4: Simplify right side
438.10x = 159,281.09 - Step 5: Solve for x
x = 159,281.09/438.10 - Step 6: Final answer
x = 363.57
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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.