Finding the Fourth Proportional to 259,747.70, 389,621.56 and 207,259.70
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Solution
The fourth proportional to 259,747.70, 389,621.56 and 207,259.70 is: 310,889.56
Step by Step Solution
- Step 1: Write the proportion equation
259,747.70 : 389,621.56 = 207,259.70 : x - Step 2: Convert to fraction form
259,747.70/389,621.56 = 207,259.70/x - Step 3: Cross multiply
259,747.70x = 389,621.56 × 207,259.70 - Step 4: Simplify right side
259,747.70x = 80,752,847,639.13 - Step 5: Solve for x
x = 80,752,847,639.13/259,747.70 - Step 6: Final answer
x = 310,889.56
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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.