Finding the Fourth Proportional to 438,678.60, 605,378.40 and 237,474.60
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Solution
The fourth proportional to 438,678.60, 605,378.40 and 237,474.60 is: 327,715.99
Step by Step Solution
- Step 1: Write the proportion equation
438,678.60 : 605,378.40 = 237,474.60 : x - Step 2: Convert to fraction form
438,678.60/605,378.40 = 237,474.60/x - Step 3: Cross multiply
438,678.60x = 605,378.40 × 237,474.60 - Step 4: Simplify right side
438,678.60x = 143,761,993,388.64 - Step 5: Solve for x
x = 143,761,993,388.64/438,678.60 - Step 6: Final answer
x = 327,715.99
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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.