Finding the Fourth Proportional to 438.13, 604.63 and 263.44
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Solution
The fourth proportional to 438.13, 604.63 and 263.44 is: 363.55
Step by Step Solution
- Step 1: Write the proportion equation
438.13 : 604.63 = 263.44 : x - Step 2: Convert to fraction form
438.13/604.63 = 263.44/x - Step 3: Cross multiply
438.13x = 604.63 × 263.44 - Step 4: Simplify right side
438.13x = 159,283.73 - Step 5: Solve for x
x = 159,283.73/438.13 - Step 6: Final answer
x = 363.55
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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.