Finding the Fourth Proportional to 355,198.70, 530,206.94 and 310,357.92
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Solution
The fourth proportional to 355,198.70, 530,206.94 and 310,357.92 is: 463,272.88
Step by Step Solution
- Step 1: Write the proportion equation
355,198.70 : 530,206.94 = 310,357.92 : x - Step 2: Convert to fraction form
355,198.70/530,206.94 = 310,357.92/x - Step 3: Cross multiply
355,198.70x = 530,206.94 × 310,357.92 - Step 4: Simplify right side
355,198.70x = 164,553,923,067.97 - Step 5: Solve for x
x = 164,553,923,067.97/355,198.70 - Step 6: Final answer
x = 463,272.88
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.