Finding the Fourth Proportional to 403,388.21, 605,126.63 and 133,418.00
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Solution
The fourth proportional to 403,388.21, 605,126.63 and 133,418.00 is: 200,141.66
Step by Step Solution
- Step 1: Write the proportion equation
403,388.21 : 605,126.63 = 133,418.00 : x - Step 2: Convert to fraction form
403,388.21/605,126.63 = 133,418.00/x - Step 3: Cross multiply
403,388.21x = 605,126.63 × 133,418.00 - Step 4: Simplify right side
403,388.21x = 80,734,786,567.70 - Step 5: Solve for x
x = 80,734,786,567.70/403,388.21 - Step 6: Final answer
x = 200,141.66
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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.