Finding the Fourth Proportional to 342,642.11, 472,393.08 and 281,163.11
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Solution
The fourth proportional to 342,642.11, 472,393.08 and 281,163.11 is: 387,633.34
Step by Step Solution
- Step 1: Write the proportion equation
342,642.11 : 472,393.08 = 281,163.11 : x - Step 2: Convert to fraction form
342,642.11/472,393.08 = 281,163.11/x - Step 3: Cross multiply
342,642.11x = 472,393.08 × 281,163.11 - Step 4: Simplify right side
342,642.11x = 132,819,505,153.31 - Step 5: Solve for x
x = 132,819,505,153.31/342,642.11 - Step 6: Final answer
x = 387,633.34
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1.5x scale
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.