Finding the Fourth Proportional to 438,230.40, 657,151.20 and 201,645.60
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Solution
The fourth proportional to 438,230.40, 657,151.20 and 201,645.60 is: 302,378.95
Step by Step Solution
- Step 1: Write the proportion equation
438,230.40 : 657,151.20 = 201,645.60 : x - Step 2: Convert to fraction form
438,230.40/657,151.20 = 201,645.60/x - Step 3: Cross multiply
438,230.40x = 657,151.20 × 201,645.60 - Step 4: Simplify right side
438,230.40x = 132,511,648,014.72 - Step 5: Solve for x
x = 132,511,648,014.72/438,230.40 - Step 6: Final answer
x = 302,378.95
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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.