Finding the Fourth Proportional to 259,734.20, 388,945.20 and 207,246.20
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Solution
The fourth proportional to 259,734.20, 388,945.20 and 207,246.20 is: 310,345.79
Step by Step Solution
- Step 1: Write the proportion equation
259,734.20 : 388,945.20 = 207,246.20 : x - Step 2: Convert to fraction form
259,734.20/388,945.20 = 207,246.20/x - Step 3: Cross multiply
259,734.20x = 388,945.20 × 207,246.20 - Step 4: Simplify right side
259,734.20x = 80,607,414,708.24 - Step 5: Solve for x
x = 80,607,414,708.24/259,734.20 - Step 6: Final answer
x = 310,345.79
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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.