Finding the Fourth Proportional to 388,197.92, 535,658.01 and 216,091.99
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Solution
The fourth proportional to 388,197.92, 535,658.01 and 216,091.99 is: 298,176.26
Step by Step Solution
- Step 1: Write the proportion equation
388,197.92 : 535,658.01 = 216,091.99 : x - Step 2: Convert to fraction form
388,197.92/535,658.01 = 216,091.99/x - Step 3: Cross multiply
388,197.92x = 535,658.01 × 216,091.99 - Step 4: Simplify right side
388,197.92x = 115,751,405,199.57 - Step 5: Solve for x
x = 115,751,405,199.57/388,197.92 - Step 6: Final answer
x = 298,176.26
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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.