Finding the Fourth Proportional to 388,249.21, 581,883.11 and 174,789.81
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Solution
The fourth proportional to 388,249.21, 581,883.11 and 174,789.81 is: 261,963.80
Step by Step Solution
- Step 1: Write the proportion equation
388,249.21 : 581,883.11 = 174,789.81 : x - Step 2: Convert to fraction form
388,249.21/581,883.11 = 174,789.81/x - Step 3: Cross multiply
388,249.21x = 581,883.11 × 174,789.81 - Step 4: Simplify right side
388,249.21x = 101,707,238,020.62 - Step 5: Solve for x
x = 101,707,238,020.62/388,249.21 - Step 6: Final answer
x = 261,963.80
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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.