Finding the Fourth Proportional to 403,168.55, 605,126.97 and 203,629.05
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Solution
The fourth proportional to 403,168.55, 605,126.97 and 203,629.05 is: 305,632.55
Step by Step Solution
- Step 1: Write the proportion equation
403,168.55 : 605,126.97 = 203,629.05 : x - Step 2: Convert to fraction form
403,168.55/605,126.97 = 203,629.05/x - Step 3: Cross multiply
403,168.55x = 605,126.97 × 203,629.05 - Step 4: Simplify right side
403,168.55x = 123,221,430,030.48 - Step 5: Solve for x
x = 123,221,430,030.48/403,168.55 - Step 6: Final answer
x = 305,632.55
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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.