Finding the Fourth Proportional to 259,821.81, 358,584.35 and 216,137.19
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Solution
The fourth proportional to 259,821.81, 358,584.35 and 216,137.19 is: 298,294.49
Step by Step Solution
- Step 1: Write the proportion equation
259,821.81 : 358,584.35 = 216,137.19 : x - Step 2: Convert to fraction form
259,821.81/358,584.35 = 216,137.19/x - Step 3: Cross multiply
259,821.81x = 358,584.35 × 216,137.19 - Step 4: Simplify right side
259,821.81x = 77,503,413,786.98 - Step 5: Solve for x
x = 77,503,413,786.98/259,821.81 - Step 6: Final answer
x = 298,294.49
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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.