Finding the Fourth Proportional to 259,765.20, 388,991.70 and 207,277.20
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Solution
The fourth proportional to 259,765.20, 388,991.70 and 207,277.20 is: 310,392.27
Step by Step Solution
- Step 1: Write the proportion equation
259,765.20 : 388,991.70 = 207,277.20 : x - Step 2: Convert to fraction form
259,765.20/388,991.70 = 207,277.20/x - Step 3: Cross multiply
259,765.20x = 388,991.70 × 207,277.20 - Step 4: Simplify right side
259,765.20x = 80,629,110,399.24 - Step 5: Solve for x
x = 80,629,110,399.24/259,765.20 - Step 6: Final answer
x = 310,392.27
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.