Finding the Fourth Proportional to 401,643.05, 602,044.20 and 135,311.54
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Solution
The fourth proportional to 401,643.05, 602,044.20 and 135,311.54 is: 202,825.68
Step by Step Solution
- Step 1: Write the proportion equation
401,643.05 : 602,044.20 = 135,311.54 : x - Step 2: Convert to fraction form
401,643.05/602,044.20 = 135,311.54/x - Step 3: Cross multiply
401,643.05x = 602,044.20 × 135,311.54 - Step 4: Simplify right side
401,643.05x = 81,463,524,839.85 - Step 5: Solve for x
x = 81,463,524,839.85/401,643.05 - Step 6: Final answer
x = 202,825.68
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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.