Finding the Fourth Proportional to 845.21, 1,267.80 and 252.63
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Solution
The fourth proportional to 845.21, 1,267.80 and 252.63 is: 378.94
Step by Step Solution
- Step 1: Write the proportion equation
845.21 : 1,267.80 = 252.63 : x - Step 2: Convert to fraction form
845.21/1,267.80 = 252.63/x - Step 3: Cross multiply
845.21x = 1,267.80 × 252.63 - Step 4: Simplify right side
845.21x = 320,283.05 - Step 5: Solve for x
x = 320,283.05/845.21 - Step 6: Final answer
x = 378.94
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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.