Finding the Fourth Proportional to 438,765.21, 658,147.77 and 106,341.21
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Solution
The fourth proportional to 438,765.21, 658,147.77 and 106,341.21 is: 159,511.80
Step by Step Solution
- Step 1: Write the proportion equation
438,765.21 : 658,147.77 = 106,341.21 : x - Step 2: Convert to fraction form
438,765.21/658,147.77 = 106,341.21/x - Step 3: Cross multiply
438,765.21x = 658,147.77 × 106,341.21 - Step 4: Simplify right side
438,765.21x = 69,988,230,220.60 - Step 5: Solve for x
x = 69,988,230,220.60/438,765.21 - Step 6: Final answer
x = 159,511.80
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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.