Finding the Fourth Proportional to 199,137.81, 298,762.07 and 86,827.84
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Solution
The fourth proportional to 199,137.81, 298,762.07 and 86,827.84 is: 130,265.90
Step by Step Solution
- Step 1: Write the proportion equation
199,137.81 : 298,762.07 = 86,827.84 : x - Step 2: Convert to fraction form
199,137.81/298,762.07 = 86,827.84/x - Step 3: Cross multiply
199,137.81x = 298,762.07 × 86,827.84 - Step 4: Simplify right side
199,137.81x = 25,940,865,212.03 - Step 5: Solve for x
x = 25,940,865,212.03/199,137.81 - Step 6: Final answer
x = 130,265.90
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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.