Finding the Fourth Proportional to 438,579.20, 605,239.24 and 237,375.20
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Solution
The fourth proportional to 438,579.20, 605,239.24 and 237,375.20 is: 327,577.75
Step by Step Solution
- Step 1: Write the proportion equation
438,579.20 : 605,239.24 = 237,375.20 : x - Step 2: Convert to fraction form
438,579.20/605,239.24 = 237,375.20/x - Step 3: Cross multiply
438,579.20x = 605,239.24 × 237,375.20 - Step 4: Simplify right side
438,579.20x = 143,668,785,642.85 - Step 5: Solve for x
x = 143,668,785,642.85/438,579.20 - Step 6: Final answer
x = 327,577.75
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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.