Finding the Fourth Proportional to 438,355.40, 657,338.70 and 201,770.60
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Solution
The fourth proportional to 438,355.40, 657,338.70 and 201,770.60 is: 302,566.42
Step by Step Solution
- Step 1: Write the proportion equation
438,355.40 : 657,338.70 = 201,770.60 : x - Step 2: Convert to fraction form
438,355.40/657,338.70 = 201,770.60/x - Step 3: Cross multiply
438,355.40x = 657,338.70 × 201,770.60 - Step 4: Simplify right side
438,355.40x = 132,631,623,902.22 - Step 5: Solve for x
x = 132,631,623,902.22/438,355.40 - Step 6: Final answer
x = 302,566.42
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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.